Perhaps you should try some spelling variations:
communication phase » communication case, communication based, communication paper
4.6 communication » 4.1 communication, 7.6 communication, 11.6 communication
die developpement » de developpement, le developpement, du developpement
developpement l » developpement il, developpement la, developpement de
inflation food » inflation good, inflation from, inflation und
prices 4.6 » prices 4.2, prices 4.9, prices 6.6
phase die » phase i, phase ii, phase iii
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 _ inflation food prices 4.6 communication phase die developpement l afrique.*.