Perhaps you should try some spelling variations:
2.2.3 communication » 12.2.4 communication, 3.2 communication, 2.7 communication
developpement il » developpement de, developpement et, developpement du
4 developpement » de developpement, le developpement, et developpement
index places » index place, index plates, deux places
places 2.2.3 » places 13.2.3, places 3.2.5, places 7.2.4
il afrique » l afrique, en afrique
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 index places 2.2.3 communication costs 4 developpement il afrique.*.