One of the most frequently available features is truncation . Truncation is very useful when searching on terms that may or may not be plural. Generally, databases are not case sensitive, i.e., they do not care whether or not you capitalize. The safest choice is not to capitalize. For those items that are not available fulltext on the database, you can utilize the techniques and services detailed elsewhere in this handout.
Several databases offer fee-based document delivery.
You may utilize these services at your own expense .