Perhaps you should try some spelling variations:
de communication » mobile communication, online communication
development l » development li, development 1, development law
part papers » papers papers, report papers
papers de » papeis de, papers da, papers does
l afrique » en afrique
1 test » 2 test, f test, 3 test
4 test » 2 test, f test, 4.1 test

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "technology _ notation part papers de communication ((1 test) OR (4 test)) development l afrique.~".
• Adding a wildcard symbol may retrieve word variants: technology _ notation part papers de communication ((1 test) OR (4 test)) development l afrique.*.