Truncation is a technique for retrieving variations in one search term. Specify the order you want. Put keywords in order of priority. Search engines rank documents by relevance, with first query terms to be evaluated with a higher ranking. Know your limits.
Most search engines provide options for limiting a search by date, url, language, title, and media.
These techniques are easy ways to narrow a search which retrieves too many records. Some limits can be designated by using a pull down menu or text box. Others use a prefix followed by the term to be searched. If at first you don't succeed, try another search engine. Lots of search engines claim to index the entire web, but no one search engine covers everything.