Perhaps you should try some spelling variations:
communication phase » communication case, communication based, communication paper
3.2 communication » 3 communication, 2.3 communication, de communication
die developpement » de developpement, le developpement, du developpement
developpement de » developpement des, developpement durable
inflation world » inflation gerold, innovation world, inflation build
world prices » food prices
prices 3.2 » price 3.2, prices 3.1, prices 4.2
de afrique » de l'afrique, en afrique, l afrique
phase die » phase i, phase ii, phase iii

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

• Adding a wildcard symbol may retrieve word variants: technology _ inflation world prices 3.2 communication phase die developpement de afrique.*.