Perhaps you should try some spelling variations:
developpement west » developpement des, developpement et, development west
de developpement » sme development
4 communication » 3 communication, 5.4 communication, de communication
technology 3.1 » technology 1, technology 2.2, technology _
3.1 transport » 3.11 transport, 3.2 transport, 3.3 transport
network link » network links, networks link, network lent
link 4 » linke 4, link _, link a
a de » a die, a der, a des

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

• Adding a wildcard symbol may retrieve word variants: technology 3.1 transport network link 4 communication a de developpement west africa.*.