Perhaps you should try some spelling variations:
2.1.3 communication » 2.2.3 communication, 2.8.3 communication, 6.1.3 communication
developpement de » developpement des, developpement durable
technology used » technology use, technology based, technology users
used inflation » und inflation, cases inflation, musil inflation
inflation he » inflation e, inflation ee, inflation der
spaces 2.1.3 » space 2.1.3, space 3.1.3, spaces 2.2.2
de afrique » de l'afrique, en afrique, l afrique
he spaces » he space, use spaces, lp spaces

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

• Adding a wildcard symbol may retrieve word variants: technology used inflation he spaces 2.1.3 communication costs _ developpement de afrique.*.