Thanks for letting us know. We believe it is because the words work and home are very common here in YorkieTalk posts, thus the search engine here can't handle it because there's too many posts with those words in it.
You can try the search at google.com using the query "work from home site: yorkietalk.com" which will give you some results.
Link:
http://www.google.com/search?client=...utf-8&oe=utf-8