Perhaps you should try some spelling variations:
9.1 communication » 4.1 communication, 1.1 communication, 3.1 communication
developpement en » developpement et, developpement des, developpement de
inflation rates » inflation rate
4 developpement » de developpement, le developpement, et developpement
technology die » technologie die, technology does, technology 4ir
die inflation » does inflation, der inflation, price inflation
have 9.1 » have 5.3
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology die inflation rates have 9.1 communication costs 4 developpement en afrique.*.