Every search engine uses different syntax for phrasing requests.
It can be a real time-waster when you use more than one search site. This utility is similar in concept to the Structured Query Language for database searches. From Visual Metrics Corp. of Vermillion, S.D., Mata Hari isn't simple to master, but once you learn its search syntax, it will generate a correct search string for many search engines. A 1.6M downloadable version is free for a 15-day trial, and serious Web researchers should get it. It works with your search engine and suggests further searches.