Perhaps you should try some spelling variations:
oral communication » personal communication
developing rural » developing real, development rural, developing halal
2.3 developing » 3.3 developing, 2.2 developing, 1.3 developing
technologie c » technologies 2, technologies 3, technologies 1
c information » 2 information, 1 information, 10 information
contents how » content how, contents co, contents mot
rural area » rural areas
costs 2.3 » costs 4.2, costs 4.4
how oral » how moral, how rural, how arab

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

• Adding a wildcard symbol may retrieve word variants: technologie c information contents how oral communication costs 2.3 developing rural area.*.