Perhaps you should try some spelling variations:
2.3.4 communication » 12.2.4 communication, 12.4.4 communication, 2.3 communication
communication phase » communication case, communication based, communication paper
de developpement » sme development
developpement l » developpement il, developpement la, developpement de
technology 2 » technology _, technology 1, technology 3
index prices » index price, index places, index provinces
prices 2.3.4 » prices 2.3.1, prices 2.3.5, prices 2.3.6
2 inflation » 12 inflation, _ inflation, 6 inflation
l afrique » en afrique
phase de » phase der, phase des, phase die

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

• Adding a wildcard symbol may retrieve word variants: technology 2 inflation index prices 2.3.4 communication phase de developpement l afrique.*.