Perhaps you should try some spelling variations:
regulation affect » regulations affect, regulation after, education affect
2.3 communication » 3.2 communication, de communication, 4 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 2.3 » price 2.3, prices 2.4, prices 2.1

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 2.3 communication _ au developpement en afrique.*.