Perhaps you should try some spelling variations:
3.1 communication » 3.1 communications, 3.2 communication, 3.5 communication
inflation goods » inflation good, inflation gross, information goods
developpement l » developpement il, developpement la, developpement de
technology 1 » technology _
1 inflation » 10 inflation, 12 inflation, _ inflation
goods price » goods prices, good price, goods private
price 3.1 » prices 3.1, rice 3.1, price 3.2
l afrique » en afrique

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

• Adding a wildcard symbol may retrieve word variants: technology 1 inflation goods price 3.1 communication costs _ developpement l afrique.*.