How can I get a specific part of a chat message using a table?

Try changing local cool = table.find(objects, msg) to local cool = game.ServerStorage:FindFirstChild(msg)

local chat = game:GetService("Chat")
adjectives = {""}
local Players = game:GetService("Players")
local ServerStorage = game:GetService("ServerStorage")
Players.PlayerAdded:Connect(function(player)
        player.CharacterAdded:Connect(function(character)
            local humanoidRootPart = character:WaitForChild("HumanoidRootPart")
            player.Chatted:Connect(function(msg)
                local cool = ServerStorage:FindFirstChild(msg)
                print(cool, "|" ..  msg)
                if cool ~= nil then
                    Instance.new("Part", workspace)
                end

--              local clone = cool:Clone()
--              clone.Parent = game.Workspace
--              clone.Position = humanoidRootPart.Position
            end)
        end)
end)

'ServerScriptService' and 'ServerStorage' seems to be fine.

I see you're up to something.

When i was making 'stand on part or click to popup a TextLabel', i changed the time and it worked finally perfectly!

So if you are up to it put 'something' like wait (0.5) in it!

Try doing this.

local chat = game:GetService("Chat")
adjectives = {""}
objects = game.ServerStorage:GetChildren()
local Players = game:GetService("Players")
game.Players.PlayerAdded:Connect(function(player)
    player.CharacterAdded:Connect(function(character)
        local humanoidRootPart = character:WaitForChild("HumanoidRootPart")
        player.Chatted:Connect(function(msg)
            for i,v in pairs(objects) do
                if msg == objects[v] then
                 print(objects[v].."|" ..msg)
                    Instance.new("Part",game.Workspace)
                 else
                 print("No Match")
                end


            --local clone = msg:Clone()
            --clone.Parent = game.Workspace
            --clone.Position = humanoidRootPart.Position


        end
    end)
end)
end)

I had this exact issue a few years ago. Try replacing table.find(objects, msg) with table.find(objects, msg:gsub("\r", "")).

Though, as someone else already answered to this post – I recommend using :FindFirstChild() instead of using a table.