Perhaps you should try some spelling variations:
ddr communication » de communication, csr communication, under communication
technologies 2 » technologies _, technologies 4
2.3 developing » 3.3 developing, 2.2 developing, 1.3 developing
developing 4 » developing _, developing a, developing e
costs 2.3 » costs 4.2, costs 4.4
4 areas » 1 areas, 2 areas, 4 areal
can de » can code, can deal, can deep

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: "technologies 2 information ((can de) OR (can do)) ddr communication costs 2.3 developing 4 areas.~".
• Adding a wildcard symbol may retrieve word variants: technologies 2 information ((can de) OR (can do)) ddr communication costs 2.3 developing 4 areas.*.