how do i find a string in a table?

Hey. I want to search a table for a string. I already tried table.find(table, string), but it always spits out nil.

heres the table:

local emojis = {
    --Standard emoji set
    ["standard"] = {

        ["common"] = {

            ["Grinning_Face"] = {
                Name = "Grinning face",
                Emoji = "????",
                Rarity = "Common",
                Cost = 50
            },

            ["Beaming_Face"] = {
                Name = "Beaming face",
                Emoji = "????",
                Rarity = "Common",
                Cost = 50
            },

            ["Grinning_Squinting_Face"] = {
                Name = "Grinning squinting face",
                Emoji = "????",
                Rarity = "Common",
                Cost = 60
            },

            ["Smiling_Face"] = {
                Name = "Smiling face",
                Emoji = "????",
                Rarity = "Common",
                Cost = 40
            },

            ["Laughing_Face"] = {
                Name = "Laughing face",
                Emoji = "????",
                Rarity = "Common",
                Cost = 70
            },

            ["Winking_Face"] = {
                Name = "Winking face",
                Emoji = "????",
                Rarity = "Common",
                Cost = 70
            },

            ["Cheeky_Face"] = {
                Name = "Cheeky face",
                Emoji = "????",
                Rarity = "Common",
                Cost = 70
            }

        },

        ["uncommon"] = {

            ["Angel_Face"] = {
                Name = "Angel face",
                Emoji = "????",
                Rarity = "Uncommon",
                Cost = 180
            },

            ["Goofy_Face"] = {
                Name = "Goofy face",
                Emoji = "????",
                Rarity = "Uncommon",
                Cost = 170
            },

            ["Star_eyed_face"] = {
                Name = "Star eyed face",
                Emoji = "????",
                Rarity = "Uncommon",
                Cost = 150
            }

        },

        ["rare"] = {

        },

        ["very_rare"] = {

        },

        ["extreamly_rare"] = {

        },

        ["mega_rare"] = {

        }

    }

}

and this is my code:

function emojis.GiveEmoji(PlayerName, Emoji)
    print(table.find(emojis, Emoji))
    if table.find(emojis, Emoji) == nil then
        print("invalid emoji name")
    else
        local invGui = game.Players[PlayerName].PlayerGui:WaitForChild("Inventory")
        if invGui.Frame.ScrollingFrame:FindFirstChild(Emoji) then
            local Em = invGui.Frame.ScrollingFrame[Emoji]

            Em.Count.Value = Em.Count.Value + 1
            Em.TextLabel.Text = Emoji.." x"..Em.Count.Value
        else
            local clone = invGui.InvContent.ImageButton:Clone()
            clone.Name = Emoji
            clone.TextLabel.Text = Emoji
            clone.Count.Value = 1
            clone.Parent = invGui.Frame.ScrollingFrame
            clone.Visible = true
        end
        print("gave emoji ".. Emoji.. " to ".. PlayerName)
    end
end

and if you are wondering why the function name is emojis.GiveEmoji: its because all of this is in a module script. I hope someone can help, thanks in advance!