Building Block search in Academic Search Complete

Thesis for the paper that I am working on:

Theoretical models and demographic data reveal that human information seeking habits remain generally the same regardless of the interface in which information is sought

At this point I am specifically looking for information on the information seeking behaviors of people using digital information sources.

Facets:
Information seeking behaviors
Digital information sources

I browsed the subject headings in Academic Search Complete to identify subject terms for my facets.

Information seeking behaviors:
INTERNET searching
ELECTRONIC information resource searching
DATABASE searching
INFORMATION behavior
INFORMATION-seeking strategies

Digital information sources:
Internet
SEARCH engines
ELECTRONIC information resources
WORLD Wide Web
WEB search engines
DIGITAL libraries

Building Block Search (all searches were in the Subject Headings field)

I combined my terms for each facet:

S1: Information seeking behaviors facet
((INTERNET searching) or (ELECTRONIC information resource searching) or (DATABASE searching) or (INFORMATION behavior) or (INFORMATION-seeking strategies)) = 9151 hits

S2: Digital information sources facet
((Internet) or (SEARCH engines) or (ELECTRONIC information resources) or (WORLD Wide Web) or (WEB search engines) or (DIGITAL libraries)) = 133295 hits

I then combined my facets:

S3: (S1 and S2) = 5759 hits

I retrieved too many hits, so I decided to remove some of the terms from the combined Information seeking behaviors facet. I removed the terms that referenced digital sources since those were redundant in combination with the Digital information sources facet:

S4: Revised Information seeking behaviors facet
((INFORMATION behavior) or (INFORMATION-seeking strategies)) = 444 hits

I recombined my facets:

S5: (S4 and S2) = 114 hits

I was satisfied with the results from my final search.

Citation:
Ford, N., Eaglestone, B., Madden, A., & Whittle, M. (2009). Web searching by the "general public": an individual differences perspective. Journal of Documentation, 65(4), 632-667.