Perhaps you should try some spelling variations:
4.1 communication » 4 communication, 2.3 communication, 3.2 communication
developpement la » developpement de, developpement et, developpement du
technology nick » technology new, technology 4ir, technology needs
nick isolation » die isolation, task isolation, time isolation
isolation das » isolation haus, isolation task, isolation a
la afrique » l afrique, la fabrique, en afrique
wie 4.1 » wie 4.2, wie 11.1

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

• Adding a wildcard symbol may retrieve word variants: technology nick isolation das wie 4.1 communication costs _ developpement la afrique.*.