Perhaps you should try some spelling variations:
3.1 communication » 3.1 communications, 3.2 communication, 3.5 communication
le developpement » de developpement, sme development
developpement la » developpement de, developpement et, developpement du
index price » index place, index choice, index places
la afrique » l afrique, la fabrique, en afrique
price 3.1 » prices 3.1, rice 3.1, price 3.2
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 _ inflation index price 3.1 communication costs le developpement la afrique.*.