Perhaps you should try some spelling variations:
communication paper » communication power, communication pattern, communication partner
transfer relations » transfer operations, transfer stations, transfer simulations
2.3 communication » 3.2 communication, de communication, 4 communication
developpement en » developpement et, developpement des, developpement de
relations und » relation und, relations under, relationen und
und price » fund price, usd price, fund prices
price 2.3 » price 3, price 4.4

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

• Adding a wildcard symbol may retrieve word variants: technology transfer relations und price 2.3 communication paper _ developpement en afrique.*.