Perhaps you should try some spelling variations:
oral communication » personal communication
information based » information case, information bank, transformation based
developing asia » development asia, developing a
4 developing » 3 developing
based from » based frame, based food, based free
asia areas » basic areas, aside areas, basin areas
from oral » from moral, from rural, from oil
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technologies _ information based from oral communication costs 4 developing asia areas.*.