Perhaps you should try some spelling variations:
1.4 communication » 5.4 communication, 1.1 communication, 1.3 communication
inflation rates » inflation rate
4 developpement » de developpement, le developpement, et developpement
des afrique » en afrique, de l'afrique
rates rice » rates raise, rates africa, rates greece
rice 1.4 » rice 17.4, rice 1.3, rice 4.4
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 _ inflation rates rice 1.4 communication costs 4 developpement des afrique.*.