Perhaps you should try some spelling variations:
ns communications » nps communications, vs communications, les communications
trade development » software development
communications 2 » communications _, communications a, communications 5
technologies 2 » technologies _, technologies 4
development en » developpement en, development menu, development eco
2 trade » 1 trade, 4 trade
2 des » 2 der, 2 das, 3 des
a des » a der, a das

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "technologies 2 information ((2 des) OR (a des)) ns communications 2 trade development en afrique.~".
• Adding a wildcard symbol may retrieve word variants: technologies 2 information ((2 des) OR (a des)) ns communications 2 trade development en afrique.*.