Perhaps you should try some spelling variations:
communication services » telecommunications services
oral communication » personal communication
information 1.2 » information 1.5.2, information 2
pes development » pss development, pme's development, does development
services pes » services pt, services part, services 3.3
bank africa » bank's africa, can africa, banking africa
who oral » who deal
1.2 who » 11.2 who, 1.2 why, 5.2 who

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies _ information 1.2 who oral communication services pes development bank africa.~.
• Adding a wildcard symbol may retrieve word variants: technologies _ information 1.2 who oral communication services pes development bank africa.*.