Google web search's secret: it's not searching what you tell it to search.
- suggest spelling corrections and alternative spellings
- personalize your search by using information such as sites you’ve visited before
- include synonyms of your search terms to find related results
- find results that match similar terms to those in your query
- search for words with the same stem, like "running" when you search for [ run ]
- suggest spelling corrections and alternative spellings - personalize your search by using information such as sites you’ve visited before - include synonyms of your search terms to find related results - find results that match similar terms to those in your query - search for words with the same stem, like "running" when you search for [ run ]
http://support.google.com/websearch/bin/answer.py?hl=en&...
Also https://en.wikipedia.org/wiki/Google_bomb