Perhaps you should try some spelling variations:
communication costly » communication costs, communication costa, communications costs
trough communication » through communication, thought communication, touch communication
land development » world development, child development
technology 2.1 » technology 2.2, technology 3.1, technology 1
report africa » exports africa, report april, transport africa
2.1 creation » 3.1 creation, 2.2.1 creation, 2.1 creating
rare trough » care through, trade through, came through
costly land » cost land, costs land, country land
creation 6 » creation _, creation 5, creation a
6 rare » _ rare, a rare

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

• Adding a wildcard symbol may retrieve word variants: technology 2.1 creation 6 rare trough communication costly land development report africa.*.