Perhaps you should try some spelling variations:
information vector » information section, information directory, information vorwort
a developpement » au developpement, de developpement, le developpement
developpement l » developpement il, developpement la, developpement de
vector spaces » vector space
technology 1 » technology _
l afrique » en afrique
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technology 1 information vector spaces _ communication costs a developpement l afrique.*.