Perhaps you should try some spelling variations:
der communication » de communication, under communication, debt communication
technologien stm » technologien am, technologien im, technologien ist
formation phase » formation chapter
1.3 developing » 3.3 developing, 13 developing, 7.3 developing
stm formation » stem formation, stm information, slum formation
phase des » phasen des, phase der
costs 1.3 » costs 12.3, costs 14.3, costs 15.3
des der » des dr, des ddr, des dem

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 der communication costs 1.3 developing _ areas.*.