Perhaps you should try some spelling variations:
optical communication » optical communications, optic communication, political communication
technologies can » technologies a, technologies co, technologies _
information bank » information b, information 2, information 1
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
can information » von information, von informationen
4 optical » 14 optical, _ optical, 4 optimal
costs de » costs _, costs 4, costs a
bank 4 » bank _, bank a, bank 7

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

• Adding a wildcard symbol may retrieve word variants: technologies can information bank 4 optical communication costs de developpement en afrique.*.