Perhaps you should try some spelling variations:
communication phase » communication case, communication based, communication paper
3.1 communication » 3.1 communications, 3.2 communication, 3.5 communication
die developpement » de developpement, le developpement, du developpement
developpement de » developpement des, developpement durable
inflation trade » inflation rate, inflation rates, inflation tax
technology 3 » technology _, technology 1, technology 4
trade prices » crude prices, trade practices, trade policies
3 inflation » _ inflation, 2 inflation, 6 inflation
prices 3.1 » prices 2.1, prices 3.2, prices 2.3.1
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 3 inflation trade prices 3.1 communication phase die developpement de afrique.*.