Perhaps you should try some spelling variations:
technologies energy » technologies new, technologies any
communication costs » communication systems, communication efforts, communication skills
mass communication » risk communication, _ communication, mobile communication
development co » development _, development a, development case
a development » _ development, clean development, asian development
de mass » does mass, ice mass
costs a » costs _

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies energy information _ de mass communication costs a development co afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies energy information _ de mass communication costs a development co afrique.*.