Perhaps you should try some spelling variations:
information ratio » information nation, information matrix, information section
4.2 communication » 4.2 communications, 3.2 communication, 4.1 communication
et developpement » de developpement, le developpement, test development
developpement de » developpement des, developpement durable
der information » insider information, sector information, labor information
technology der » technology does, technology 4ir, technology dlt
ratio case » rating case, ratio cable, ratio scale
de afrique » de l'afrique, en afrique, l afrique
case 4.2 » case 4.1, case 2
costs et » costs _, costs 4, costs a

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

• Adding a wildcard symbol may retrieve word variants: technology der information ratio case 4.2 communication costs et developpement de afrique.*.