Perhaps you should try some spelling variations:
time communication » de communication, mobile communication, online communication
mena dievelopment » mena development, mental development, media development
technology how » technology 1, technology 2.2, technology 3
dievelopment 1 » development 1, development 14, development 11
how main » how email, how many, how men
papers a » papers _, papers 5, papers 1
papers 6 » papers _, papers 5

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

• Performing a fuzzy search may retrieve terms with similar spellings: technology how main ((papers a) OR (papers 6)) time communication _ mena dievelopment 1 africa.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "technology how main ((papers a) OR (papers 6)) time communication _ mena dievelopment 1 africa.*".