Can't autocomplete term that contains search string

[mosofsky]

The current version seems to support matching a search string to a term based only if the term begins with the search term. It would be useful if it could also match a term that contains the search term.

Scenario: Term begins with search string
Given the term 'legal sea foods'
When the user searches for 'legal sea'
Then 'legal sea foods' should be returned as a match [PASS]

Scenario: Term contains search string
Given the term 'legal sea foods'
When the user searches for 'sea foods'
Then 'legal sea foods' should be returned as a match [FAIL]