Perhaps you should try some spelling variations:
african development » asian development, urban development, driven development
communication seven » communication sweden, communication event, communication series
technologies some » technologies soil, technologies stage, technologies ser
information 1.5.2 » information 1.2, information 2
5.2 communication » 3.2 communication, 6.2 communication, 2.2 communication
some information » more information, time information, one information
development case » development china
seven african » serer african, serve african, select african
case asia » case basis, case anna
1.5.2 a » 11.5.2 a, 12.5.2 a, 13.5.2 a
a 5.2 » a 3.2, a 4.2, a 5.1

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

• Adding a wildcard symbol may retrieve word variants: technologies some information 1.5.2 a 5.2 communication seven african development case asia.*.