Perhaps you should try some spelling variations:
das developpement » des developpements, de developpement, du developpement
information needs » information networks
aids information » chandos information, series information
technology aids » technology a, technology age, technology asia
des american » der american, debt american, dell american
needs pre » needs more, needs one
pre risk » price risk, fire risk, more risk
a das » 1 das, 2 das, 3 das

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

• Adding a wildcard symbol may retrieve word variants: technology aids information needs pre risk communication a das developpement des american.*.