Perhaps you should try some spelling variations:
communication based » communication united, communication brazil, communication barriers
leur developpement » le developpement, deux developpements, de developpement
2.3 communication » 3.2 communication, de communication, 4 communication
developpement en » developpement et, developpement des, developpement de
technology 6 » technology _, technology 1, technology 3
6 isolation » _ isolation, v isolation, 6.4 isolation
isolation a » isolation _, isolation 1
crime 2.3 » crimes 1.3, crime 5.4, time 2.3
a crime » _ crime, 3 crime, war crime

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

• Adding a wildcard symbol may retrieve word variants: technology 6 isolation a crime 2.3 communication based leur developpement en afrique.*.