Perhaps you should try some spelling variations:
optical communication » optical communications, optic communication, political communication
rights development » its development, rights developing, gas development
development note » development notes, development cote, developments notes
2.2 information » 4.2 information, 2.2.3 information, 2.2 transformation
information gdp » information gap, information gaps, information guide
technology 2.2 » technology _, technology 1, technology 3
from optical » from optimal, from optional, from apical
note africa » role africa, income africa, state africa
gdp from » gap from, up from, map from
a rights » a right

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

• Adding a wildcard symbol may retrieve word variants: technology 2.2 information gdp from optical communication a rights development note africa.*.