Perhaps you should try some spelling variations:
communication costs » communication systems, communication efforts, communication skills
mass communication » risk communication, _ communication, mobile communication
technologies debt » technologies new, technologies ict, technologies sector
information needs » information flows, information networks
debt information » student information, credit information, health information
costs human » lost human
needs de » needs _, needs a
de mass » does mass, ice mass

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

• Adding a wildcard symbol may retrieve word variants: technologies debt information needs de mass communication costs human development _ afrique.*.