Perhaps you should try some spelling variations:
communication phase » communication case, communication based, communication paper
4.1 communication » 4 communication, 2.3 communication, 3.2 communication
de developpement » sme development
technology u.s » technology uses, technology 2.2, technology use
u.s inflation » und inflation, 2.3 inflation, 3.2 inflation
inflation das » inflation bias, inflation tax, inflation a
des afrique » en afrique, de l'afrique
das prices » gas prices, gas price, do prices
prices 4.1 » price 4.1, prices 2.1, prices 3.1
phase de » phase der, phase des, phase die

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

• Adding a wildcard symbol may retrieve word variants: technology u.s inflation das prices 4.1 communication phase de developpement des afrique.*.