Perhaps you should try some spelling variations:
communication phase » communication case, communication based, communication paper
des developpements » deux developpements, de developpement, et developpements
technology change » technological change, technological changes
change innovation » change information, chain innovation, trade innovation
3.2 communication » 3 communication, 2.3 communication, de communication
developpements l » developpements de, developpement il, developpement la
prices 3.2 » price 3.2, prices 3.1, prices 4.2
phase des » phasen des, phase der
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 change innovation _ prices 3.2 communication phase des developpements l afrique.*.