Building Block search using LibLit database

Topic: Children's books as a role in Elementary Education
Database: LibraryLit
S1: (child* or YA or teacher*) 26488 hits
S2: (literature or book* or curriculum or education) 122117
S3: (elementary school* or grammar school* or primary school* or children s librar* or youth librar*) 11409 hits
S4:(child* or YA or teacher*) AND (literature or book* or curriculum or education) AND (elementary school* or grammar school* or primary school* or children s librar* or youth librar*) 5373 hits

This is obviously too many hits to sift through (and many seem irrevelant) so I needed to go back through and revise my search. This is what I came up with:

S1: (books or literature or fiction or nonfiction) 106642 hits
S2: (curriculum or instruction or literacy) 16842 hits
S3: (elementary school or grammar school or school library or school library media center) 25068 hits
S4: (books or literature or fiction or nonfiction) AND (curriculum or instruction or literacy) AND (elementary school or grammar school or school library or school library media center) 762 hits

I feel like S4 is what we normally jump into when we search normally. We don't think to break it down into factions. In my search, I recieved way too many results and this may be due to the fact that I have too many synonyms (they each are pulling up their own articles). This search may be better for a topic that doesn't have very much information; it may work better to broaden a topic rather than narrow it down. At least that was just my own personal experience.