Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
oral communication » personal communication
le developpement » de developpement, sme development
developpement de » developpement des, developpement durable
information 2.1 » information 12.1, information 2.2, information 2.7
3 information » 1 information
debatten oral » debatten om, debate moral, debatten das
technology 3 » technology _, technology 1, technology 4
2.1 debatten » 2.1 debate, 9.2 debatten, 3.2.6 debatten
de afrique » de l'afrique, en afrique, l afrique
cost le » cost low, cost lcc

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

• Adding a wildcard symbol may retrieve word variants: technology 3 information 2.1 debatten oral communication cost le developpement de afrique.*.