getResults

local walmart = {search_query='walmart',title='Walmart',description='Walmart is a grocer which has groceries.'}
local WALMART = 'search_query=walmart*title=Walmart*description=Walmart is a grocer with groceries.'
local burgerKing = 'search_query=burger king*title=Burger King*description=Burger King is a fast food resteraunt with burger.'
local dataBase = {'search_query=number15*title=Foot Lettuce*description=The last thing you want on a burger king burger is lettuce with foot fungus.'}
table.insert(dataBase, WALMART) table.insert(dataBase, burgerKing)

function string.split(inputstr, sep)
    if sep == nil then
            sep = "%s"
    end
    local t={}
    for str in string.gmatch(inputstr, "([^"..sep.."]+)") do
            table.insert(t, str)
    end
    return t
end

function getResults(query)
    for a,b in pairs(dataBase) do 
        local split = string.split(b, '*')
        if string.lower(query) == string.sub(split[1],#'search_query='+1) then 
            local title = string.sub(split[2], #'title='+1)
            local description = string.sub(split[3], #'description='+1)
            print('Title: '..title)
            print('Description: '..description)
        end 
    end 
end
getResults('walmart')
getResults('number15')