Perhaps you should try some spelling variations:
optical communication » optical communications, optic communication, political communication
communication model » communication media
term development » water development, tourism development, system development
information can » information case, information 1, information 1.2
development pan » development plan, development plans, development japan
technologies 2 » technologies _, technologies 4
pan african » pan american, can africa, pan africanism
de optical » _ optical, 3 optical, 12 optical
model term » model tam, model test, model erm3
can de » can do, can code, can deal

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information can de optical communication model term development pan african.*.