Perhaps you should try some spelling variations:
regulation affect » regulations affect, regulation after, education affect
3.2 communication » 3 communication, 2.3 communication, de communication
technology trade » technology trends, technology transfer, technology transfers
au developpement » du developpement, de developpement, le developpement
developpement en » developpement et, developpement des, developpement de
affect prices » affect ariel, affect crime, affect driver
prices 3.2 » price 3.2, prices 3.1, prices 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology trade regulation affect prices 3.2 communication _ au developpement en afrique.*.