Perhaps you should try some spelling variations:
6.2 communication » 3.2 communication, 2.3 communication, 2.7 communication
communication can » communication canada, communication china, communication 3
care development » case development, career development, scale development
development did » development desd, development d, development doi
transfer aid » transfer asia, transfer a, transfer als
targets file » target file, targets fig, targets rule
aid targets » rate targets
file 6.2 » file 62, falle 6.2, files 6.3
can care » can carve, care care, can cause

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

• Adding a wildcard symbol may retrieve word variants: technology transfer aid targets file 6.2 communication can care development did afrique.*.