This may be useful if you want to integrate query results into your own local bibliography. Try both american and british spelling if your search terms are in English. Check the syntax of your query. In particular, many seem to confuse the two boolean operators. Make sure you did not only search for plural forms of nouns where the singular form would be interesting, too.
Hyphenation seems to be pretty arbitrary for many technical terms.
If you tried all of the above and still could not find what you were looking for, then the bibliography collection probably does not contain it. The best solution is to create a bibliography relating to the topic you are interested in and to contribute those entries to the bibliography.