Perhaps you should try some spelling variations:
2.3.1.1 communication » 2.2.5.4 communication, 3.4.1 communication, 6.2.4.1 communication
development life » development level, development law, development latin
technology gap » technology 1, technology 2.2, technology 3
gap inflation » has inflation, grade inflation, rapid inflation
inflation den » inflation der, inflation can, inflation das
krieg 2.3.1.1 » krieg 2.3.1.2, kriege 2.3.1.3, primer 2.3.1.1
1 development » 2 development, 3.1 development, mena development
den krieg » der krieg, dem krieg
costs 1 » costs _, costs 4, costs a

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

• Adding a wildcard symbol may retrieve word variants: technology gap inflation den krieg 2.3.1.1 communication costs 1 development life africa.*.