Perhaps you should try some spelling variations:
developpement du » developpement de, developpement des, developpement et
technology gaps » technology gap
4 communication » 3 communication, 5.4 communication, de communication
gaps inflation » has inflation, grade inflation, rapid inflation
inflation und » inflation index, inflation _, inflation tax
du afrique » en afrique, l afrique, de l'afrique
und price » fund price, usd price, fund prices
price 4 » price _, price 3, price a

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

• Adding a wildcard symbol may retrieve word variants: technology gaps inflation und price 4 communication costs _ developpement du afrique.*.