Perhaps you should try some spelling variations:
communication phase » communication case, communication based, communication paper
2.3 communication » 3.2 communication, de communication, 4 communication
der developpement » de developpement, des developpements, leur developpement
developpement en » developpement et, developpement des, developpement de
inflation gross » inflation across, inflation process, information gross
technology 12 » technology 1.2, technology 1, technology 2
12 inflation » 10 inflation, 2 inflation, 3.2 inflation
gross price » cross price, goods price
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 12 inflation gross price 2.3 communication phase der developpement en afrique.*.