Perhaps you should try some spelling variations:
6.2 communication » 3.2 communication, 2.3 communication, 2.7 communication
le developpement » de developpement, sme development
developpement en » developpement et, developpement des, developpement de
risk inflation » risk information, rising inflation, risk inclination
rate date » rate data, trade date, rate water
date 6.2 » daten 6.2, data 6.2, date 4.2
costs le » 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 risk inflation rate date 6.2 communication costs le developpement en afrique.*.