Searching using The Hidden Web (2008) by Maureen Henninger.

Articulate what it is that you are looking for.
I need information on Inquiry Learning for primary school Indigenous and ESL students, or students with special needs.
Then translate the concepts into appropriate search syntax for the search tool being used.
Conceptualise the Request
1st set of concepts

Inquiry learning
Primary school
Indigenous students
ESL students
Special needs students

2nd set of concepts
Inquiry
School
Students
Indigenous
ESL
Special needs

3rd set of concepts
Learning
Inquiry

Boolean logic, developed by the English mathematician George Boole.
Inquiry AND learning AND primary AND indigenous AND students
Inquiry AND learning AND primary AND ESL AND students
Inquiry AND learning AND primary AND special AND needs

Truncation
Use the symbols *$%? Depending on the system used.
Use truncation for the word indigenous to indig*

Wild cards
Not needed in this search, but could be used for commonly misspelled words.

Stemming
Used in Google for finding stems of words.
Allintitle:~inquiry learning indigenous

Proximity operators
Inquiry (ADJ) learning (NEAR) indigenous
Combining operators and nested search
The normal order of processing of Boolean search
AND NOT ADJ NEAR WITHIN n (where n is a number) SAME OR
(Inquiry ADJ learning) NEAR indigenous OR ESL OR (special ADJ needs)