Perhaps you should try some spelling variations:
visual communication » oral communication, personal communication
technologies 2.1 » technologies _, technologies 4, technologies a
information case » information based, information can, information costs
developing basin » developing asia, developing asian, developing based
2.1 information » 3.1 information
3 developing » 3 development
basin areas » basin area, basic areas, base areas
der visual » does visual, new visual, erm visual
case der » case des, case under, phase der
costs 3 » costs _, costs 4, costs a

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

• Adding a wildcard symbol may retrieve word variants: technologies 2.1 information case der visual communication costs 3 developing basin areas.*.