You may use an asterisk * in your search to expand the range of words matching your criteria.

For example, a search for the word CORP could yield three different sets of results:

CORP* - Placing the * AFTER the word will return records containing "CORPORATION"

*CORP - Placing the * BEFORE the word will return records containing "INCORP"

*CORP* - Placing the * BEFORE and AFTER the word will return records containing "INCORPORATED"