Perhaps you should try some spelling variations:
communication phase » communication case, communication based, communication paper
1.1 communication » 4.1 communication, 1.3 communication, 1.4 communication
der developpement » de developpement, des developpements, leur developpement
inflation cross » inflation across, inflation gross, inflation crisis
developpement l » developpement il, developpement la, developpement de
technology 12 » technology 1.2, technology 1, technology 2
12 inflation » 10 inflation, 2 inflation, 3.2 inflation
cross rice » cross price, crops rice, cross river
l afrique » en afrique
rice 1.1 » rice 2.1, rice 3.1, rice 4.1

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

• Adding a wildcard symbol may retrieve word variants: technology 12 inflation cross rice 1.1 communication phase der developpement l afrique.*.