Perhaps you should try some spelling variations:
communication phase » communication case, communication based, communication paper
leur developpement » le developpement, deux developpements, de developpement
2.1 communication » 2.14 communication, 2.3 communication, 2.7 communication
developpement en » developpement et, developpement des, developpement de
technology 3.2 » technology 2.2, technology 3.1, technology 2
3.2 inflation » 12 inflation, 2.3 inflation, 3.2 isolation
prices 2.1 » prices 2.4, prices 2.3, prices 3.1
phase leur » phase der, phase four

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

• Adding a wildcard symbol may retrieve word variants: technology 3.2 inflation _ prices 2.1 communication phase leur developpement en afrique.*.