Function For Recognizing Matching Text And Adding Up Columns

I am currently tracking online PPC keyword reports with Excel and need to know if there is a function that will find and match words and phrases and then add the columns that are queried for the matching words/phrases. I think an example is definately in order.

December PPC
Keyword Clicks Cost Revenue
large dogs 45 .18 $12.00
small dogs 35 .25 $15.00

January PPC
Keyword Clicks Cost Revenue
large dogs 12 .14 $8.25
small dogs 18 .18 $5.35

Now using the example above I need a function or maybe even a macro that will scan all "keywords" and find a match for each keyword each month, say large dogs, and then add the clicks, costs, and revenue columns and post them on a particular row or rows.

So when running the function it will find and match "large dogs" for each month, it will then add the clicks for all months with "large dogs" in it and then populate a column or row with the total along with the keyword "large dogs" next to it. Is there a function that will do this or maybe even a macro?