Perhaps you should try some spelling variations:
2.3.1 communications » 2.3.1.1 communication, 2.3 communication, 3.1 communication
communications case » communication case, communications can, communications code
developpement de » developpement des, developpement durable
3 developpement » de developpement, le developpement, et developpement
technology gap » technology 1, technology 2.2, technology 3
gap inflation » has inflation, grade inflation, rapid inflation
prices 2.3.1 » prices 2.3.4, prices 2.3.5, prices 2.3.6
de afrique » de l'afrique, en afrique, l afrique
case 3 » case 1, case 2

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

• Adding a wildcard symbol may retrieve word variants: technology gap inflation _ prices 2.3.1 communications case 3 developpement de afrique.*.