Boolean Connectors - You can use the Boolean connectors and, or, or not in searching. Unless you specify otherwise, the search engine will assume that you want to connect the terms with 'and'. Evaluation takes place from left to right only, although you can use parentheses to force the order of evaluation.
Wildcards - You can use wildcards (asterisks) to search for matches to the beginnings of words only (i.e., you can not use asterisks at the front or in the middle of words). Example: use 'divin*' to search for 'divine' and 'divina'. Note: if you can't find what you are looking for and you think it should be there, try abbreviating your search using a wildcard.