Perhaps you should try some spelling variations:
technology system » technology series, technology sector, technology set
system tradition » systemic tradition, system transition, system transitions
de communication » mobile communication, online communication
development from » development forum, development fund
per development » power development, spur development, oer developments
tradition 13.2 » tradition 3.2, tradition 1.2.2, tradition 1.3.1
13.2 crisis » 10.2 crisis, 13.3 crisis, 15.2 crisis
crisis de » crisis del, crisis due, crisis debt
costs per » cost per
from air » from aid, from asia, from afar

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

• Adding a wildcard symbol may retrieve word variants: technology system tradition 13.2 crisis de communication costs per development from air.*.