Perhaps you should try some spelling variations:
oral communication » personal communication
technologies 2.1 » technologies _, technologies 4, technologies a
development plan » development plans, development planning, development policy
2.1 information » 3.1 information
3.5 development » 3.1 development, 3.2 development, 3.3 development
information i » information im, information 2, information 1
plan african » pan african, plan africa, class african
costs 3.5 » costs 4.2, costs 4.4, costs 2.3
4 oral » _ oral, 2 oral
i 4 » ii 4, iv 4

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 i 4 oral communication costs 3.5 development plan african.*.