Perhaps you should try some spelling variations:
communication paper » communication power, communication pattern, communication partner
3.2 communication » 3 communication, 2.3 communication, de communication
technology trade » technology trends, technology transfer, technology transfers
trade relations » trade regulation
relations fund » relations und, relations fur, relations around
development de » development d, development ds, developpement de
e development » sme development, mine development, site development
fund price » fund prices, food price, bond price
de afrique » de l'afrique, en afrique, l afrique
price 3.2 » prices 3.2, price 2.2, rice 3.2
paper e » paper _, paper i, paper 1

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

• Adding a wildcard symbol may retrieve word variants: technology trade relations fund price 3.2 communication paper e development de afrique.*.