Termbases are a great way to boost the number of matches you get from your TMs by storing terminology and other chunks of text that appear inside various segments in different contexts, and do not therefore always produce a match from the TM. Termbase matches are recognized and displayed automatically by SDL Trados Studio without the need to search, and you can insert them into your target segment at the press of a key or button. Termbases are created in SDL MultiTerm, which is the terminology component of SDL Trados Studio.
MultiTerm is not available as part of the trial version of SDL Trados Studio. You will need access to a licensed version of SDL Trados Studio to use it.