Perhaps you should try some spelling variations:
communication model » communication media
act developpement » et developpement, au developpement, de developpement
developpement de » developpement des, developpement durable
technology 2.1 » technology 2.2, technology 3.1, technology 1
2.1 inflation » 2.3 inflation, 2.3.1 inflation, 2 inflation
inflation der » inflation index, inflation _, inflation tax
de afrique » de l'afrique, en afrique, l afrique
der price » order price, der preise, user price
model act » model acts, model a, model aa

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

• Adding a wildcard symbol may retrieve word variants: technology 2.1 inflation der price _ communication model act developpement de afrique.*.