Perhaps you should try some spelling variations:
communication costs » communication systems, communication efforts, communication skills
information laws » information law, information flows, information gaps
development aid » development a, development bank, development _
technologies a » technologies _
a information » _ information, land information, award information
costs human » lost human

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

• Adding a wildcard symbol may retrieve word variants: technologies a information laws does _ communication costs human development aid afrique.*.