Perhaps you should try some spelling variations:
2.3.1.2 communication » 2.3.1.1 communication, 2.2.5.4 communication, 3.2.3.2 communication
developpement de » developpement des, developpement durable
inflation gross » inflation across, inflation process, information gross
a developpement » au developpement, de developpement, le developpement
technology has » technology hard, technology have, technology how
has inflation » how inflation, u.s inflation, cases inflation
krieg 2.3.1.2 » krieg 2.3.1.1, kriege 2.3.1.3, fig 2.3.1.2
de afrique » de l'afrique, en afrique, l afrique
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technology has inflation gross krieg 2.3.1.2 communication costs a developpement de afrique.*.