Perhaps you should try some spelling variations:
separation index » evaluation index, education index, selection index
developpement de » developpement des, developpement durable
l developpement » le developpement, de developpement, et developpement
der separation » order separation, air separation, ree separation
ideologie der » ideologie und, typologie der
de afrique » de l'afrique, en afrique, l afrique
index age » index a, index ad, index aao
age risk » agent risk, wages risk, rate risk
a l » a la

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

• Adding a wildcard symbol may retrieve word variants: ideologie der separation index age risk communication a l developpement de afrique.*.