Perhaps you should try some spelling variations:
oral communication » personal communication
technologies 2.1 » technologies _, technologies 4, technologies a
2.1 information » 3.1 information
developing last » developing east, developing waste, developing based
3.2 developing » 3.3 developing, 2.2 developing, 3 developing
last accessed » all accessed
costs 3.2 » costs 4.2, cost 3.2, costs 3.5
why oral » why rural, why deal
3.2 why » 1.2 why, 2.2 why, 8.2 why

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 3.2 why oral communication costs 3.2 developing last accessed.*.