Perhaps you should try some spelling variations:
communication phase » communication case, communication based, communication paper
2.3 communication » 3.2 communication, de communication, 4 communication
die developpement » de developpement, le developpement, du developpement
developpement de » developpement des, developpement durable
technology high » technology rights, technology how, technology help
inflation tax » inflation rate, inflation _, inflation target
de afrique » de l'afrique, en afrique, l afrique
tax crime » tax crimes, war crime, a crime
crime 2.3 » crimes 1.3, crime 5.4, time 2.3
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 high inflation tax crime 2.3 communication phase die developpement de afrique.*.