Perhaps you should try some spelling variations:
oral communication » personal communication
developing basin » developing asia, developing asian, developing based
information 1.2 » information 1.5.2, information 2
technologies a » technologies _, technologies 4, technologies 2
a information » 2 information, 1 information
4 developing » 3 developing
costs 4 » costs _, costs a, costs 4.2
4 oral » _ oral, 2 oral
1.2 4 » 1.2 _, 1.2 a, 1.2 r
area. » areas.

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

• Adding a wildcard symbol may retrieve word variants: technologies a information 1.2 4 oral communication costs 4 developing basin area.*.