Perhaps you should try some spelling variations:
3.5 communication » 3.2 communication, 3 communication, 2.3 communication
technology grade » technology trade, technology guides, technology gender
developpement la » developpement de, developpement et, developpement du
grade inflation » price inflation, trade information
inflation gross » inflation across, inflation process, information gross
4 developpement » de developpement, le developpement, et developpement
gross rice » cross price, grosse dicke
la afrique » l afrique, la fabrique, en afrique
rice 3.5 » rice 3.1, rice 3.3, rice 2.5
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 grade inflation gross rice 3.5 communication costs 4 developpement la afrique.*.