Perhaps you should try some spelling variations:
personal communication » interpersonal 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
4 personal » a personal, 1 personal, 1945 personal
costs 4 » costs _, costs a, costs 4.2
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 personal communication costs 4 developing basin area.*.