Perhaps you should try some spelling variations:
11.2.3 communication » 12.2.4 communication, 2.2.3 communication, 10.2.4 communication
communication case » communications case, communication based, communication phase
technology grade » technology trade, technology guides, technology gender
developpement de » developpement des, developpement durable
grade inflation » price inflation, trade information
2 developpement » de developpement, le developpement, et developpement
prices 11.2.3 » process 11.2.3, prices 11.3.1, prices 7.2.3
de afrique » de l'afrique, en afrique, l afrique
case 2 » case 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 _ prices 11.2.3 communication case 2 developpement de afrique.*.