Only use a search engine for searching websites for distinctly named organizations and people. For topics that you are unfamiliar with use search portals, virtual reference desks and general catalogues to find sites. Read the Instructions again sometimes with the continual updates what worked at one search site before might not work the same way the next time you try it.
Most times changes are mostly cosmetic, but sometimes a major change has been made.
If you are having trouble finding what you are looking for don't just use one search engine or data base try several. For best results try to find more sites to back up the reliability of the info you find. A remotely accessible program that lets you do keyword searches for information on the Internet. A query using the Boolean operators, AND , OR , and NOT , and parentheses to construct a complex condition from simpler criteria. A typical example is searching for combinations of keywords on a World-Wide Web search engine.