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
der developpement » de developpement, des developpements, leur developpement
technology grade » technology trade, technology guides, technology gender
developpement en » developpement et, developpement des, developpement de
grade inflation » price inflation, trade information
inflation under » inflation index, inflation und, inflation der
risk 3.1 » risk 1

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

• Adding a wildcard symbol may retrieve word variants: technology grade inflation under risk 3.1 communication phase der developpement en afrique.*.