Perhaps you should try some spelling variations:
introduction descriptive » introduction description, introduction disruptive, introduction prescription
introduction precision » introduction decision, introduction prison, introduction prevention
methods recursive » method recursive, methods receptive, networks recursive
recursive array » recursive warrant, recursion arrays, receive array
array forming » array format, array arcing, array fermi

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((introduction descriptive) OR (introduction precision)) methods recursive array forming~.
• Adding a wildcard symbol may retrieve word variants: ((introduction descriptive) or (introduction precision)) methods recursive array forming*.