The search terms you use are crucial to good search results. We strongly advise you to come up with as many search terms as possible. In hindsight inadequate search results are often caused by incorrect, too general, too specific or too few search terms.
The right search terms are the most important conditons for an effective search.
Keep in mind the different kinds of terms:
You don't have to think of terms all by yourself. Use the tools:
The way you search is a combination of a search method, the accompanying search techniques and the structure of your search.