Perhaps you should try some spelling variations:
communication phase » communication case, communication based, communication paper
leur developpement » le developpement, deux developpements, de developpement
2.5 communication » 2.3 communication, 2.7 communication, 3.5 communication
developpement en » developpement et, developpement des, developpement de
technology 4ir » technology 4, technology 4.1, technology 4.2
4ir inflation » der inflation, die inflation, aid inflation
inflation tax » inflation rate, inflation _, inflation target
tax prices » gas prices, car prices, tax practices
prices 2.5 » prices 2.4, prices 2.1, prices 2.3
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 4ir inflation tax prices 2.5 communication phase leur developpement en afrique.*.