Competency 6 - ERIC Building Block Search

Continuing with my search about school library collection development, I used the building block worksheet to build this search:
Concept 1 - Library
Possible synonyms - media center
Concept 2 - school
Possible synonyms - elementary, middle, NOT high, college, university
Concept 3 - collection development
Possible synonyms - selection, weeding
I came up with this search string:
(kw: library or (kw: media and kw: center)) and ((kw: school or kw: elementary or kw: middle) NOT (kw: high or kw: college or kw: university)) and ((kw: collection and kw: development) or kw: selection or kw: weeding)
I got 1,543 results. This is too many results, so I limited them to:
Language: English
Subscriptions held by TWU
This returned 417 results
Here is the record I chose:


I like the building block search technique. I feel comfortable that this search technique will provide good results because of the use of synonyms.