Perhaps you should try some spelling variations:
technologien stm » technologien am, technologien im, technologien ist
de communication » mobile communication, online communication
formation phase » formation chapter
stm formation » stem formation, stm information, slum formation
13 developing » 1.3 developing, 3 developing, 1 developing
developing 2 » developing _, developing a, developing e
phase des » phasen des, phase der
costs 13 » costs 1, costs 3, costs 12.3
2 areas » 1 areas, 2 areal, 4 areas
des de » des dem, des der, des des

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

• Adding a wildcard symbol may retrieve word variants: technologien stm formation phase des de communication costs 13 developing 2 areas.*.