Perhaps you should try some spelling variations:
technological contact » technological content, technological context, technological control
mask communication » mass communication, mass communications, risk communication
de developpement » sme development
information der » information oder, information does, informatik der
des africa » does africa, yes africa, de africa
race mask » face mask, face masks
der race » der rache, de race, der rate
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: technological contact information der race mask communication a de developpement des africa.*.