Perhaps you should try some spelling variations:
22adult learning » adult learning, adt learning, adult earnings
product learning » project learning, production learning, productive learning
project defining » project definition, project planning, project design
adults learning » adult learning, agents learning

Try widening your search to All Fields.

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: %((((22adult learning) OR (adults learning))) OR (((product learning) OR (project defining))))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((((22adult learning) OR (adults learning))) or (((product learning) or (project defining))))%22".
• Adding a wildcard symbol may retrieve word variants: %((((22adult learning) OR (adults learning))) or (((product learning) or (project defining))))%22*.