Perhaps you should try some spelling variations:
communication phase » communication case, communication based, communication paper
der developpement » de developpement, des developpements, leur developpement
technology cases » technology case, technology based, technology costs
30 communication » 3 communication, 10 communication, 36 communication
developpement en » developpement et, developpement des, developpement de
cases inflation » taxes inflation, wages inflation, core inflation
inflation rates » inflation rate
rates file » rates figure
file 30 » file 10, file 20, file 3

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

• Adding a wildcard symbol may retrieve word variants: technology cases inflation rates file 30 communication phase der developpement en afrique.*.