Once you've selected ‘your’ database the actual searching starts. For optimal results there are some rules to keep in mind. Looking for literature using just one or two keywords is a great way to generally ‘explore’ the field and get an idea of what’s going on. You can combine these keywords using so-called operators: AND, OR and NOT.
| OR | A OR B (broaden) the search result can include either term A, B or both |
| AND | A AND B (narrow) the search result must include both terms |
| NOT |
A NOT B (exclusion) |
