Perhaps you should try some spelling variations:
3.2 communication » 3 communication, 2.3 communication, de communication
developpement 2.1 » development 2.1, developpement 1.4, development 2.3
technology gap » technology 1, technology 2.2, technology 3
gap inflation » has inflation, grade inflation, rapid inflation
inflation und » inflation index, inflation _, inflation tax
2.1 materials » 2 materials, 3 materials
und rache » und rachel, und race, und sprache
rache 3.2 » oracle 3.2, fiche 3.2, rache 5.3

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

• Adding a wildcard symbol may retrieve word variants: technology gap inflation und rache 3.2 communication costs _ developpement 2.1 materials.*.