Perhaps you should try some spelling variations:
integration trade » integration strategy, migration trade, integration tool
6.2 communication » 3.2 communication, 2.3 communication, 2.7 communication
developpement en » developpement et, developpement des, developpement de
und integration » grid integration, und interpretation
4 developpement » de developpement, le developpement, et developpement
technology und » technology fund, technology used, technology use
trade prices » crude prices, trade practices, trade policies
prices 6.2 » prices 3.2, prices 4.2, prices 5.2
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology und integration trade prices 6.2 communication costs 4 developpement en afrique.*.