Perhaps you should try some spelling variations:
economic awakening » economic planning
economic learning » economic planning, academic learning, economic zoning
social isolation » social inclusion, social relations
prime series » primer series, price series, prize series
unit prime » unit price

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

• Performing a fuzzy search may retrieve terms with similar spellings: unit prime series on ((economic learning) or (economic awakening)) and social isolation ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: unit prime series on ((economic learning) OR (economic awakening)) AND social isolation ;.
• Adding a wildcard symbol may retrieve word variants: unit prime series on ((economic learning) or (economic awakening)) and social isolation ;*.