Perhaps you should try some spelling variations:
system integration » systems integration
technology system » technology series, technology sector, technology set
5.2 communication » 3.2 communication, 6.2 communication, 2.2 communication
developpement en » developpement et, developpement des, developpement de
integration wie » integration sowie, integration wage, integration wege
wie fach » wie sich, wie ich, wie auch
fach 5.2 » fach 2, mich 5.2, rich 5.2

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

• Adding a wildcard symbol may retrieve word variants: technology system integration wie fach 5.2 communication costs _ developpement en afrique.*.