Perhaps you should try some spelling variations:
developing across » developing cross, development across, developing areas
1 communication » 10 communication, 3 communication, 4 communication
2.3 developing » 3.3 developing, 2.2 developing, 1.3 developing
across african » across africa, class african
und burgern » und burgertum
burgern 1 » burgern 4, burgern zn, burger _
costs 2.3 » costs 4.2, costs 4.4

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

• Adding a wildcard symbol may retrieve word variants: technologies _ informations und burgern 1 communication costs 2.3 developing across african.*.