Perhaps you should try some spelling variations:
das developpements » des developpements, deux developpements, de developpement
information speed » information sheet, information needed, information needs
2.2 information » 4.2 information, 2.2.3 information, 2.2 transformation
communication 3 » communication _, communication a
technology 2.2 » technology _, technology 1, technology 3
speed per » speed re
per mass » per class, over mass, air mass
3 das » 1 das, 2 das

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

• Adding a wildcard symbol may retrieve word variants: technology 2.2 information speed per mass communication 3 das developpements _ america.*.