Perhaps you should try some spelling variations:
5.2 communication » 3.2 communication, 6.2 communication, 2.2 communication
4.2 development » 3.2 development, 2.3 development, 1 development
technologie de » technologies de, technologie der, technologie die
policy afrique » policy africa
de inflation » der inflation, die inflation, d inflation
rate closed » state closed
closed 5.2 » closer 5.2, closed 2, closed 2.9

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

• Adding a wildcard symbol may retrieve word variants: technologie de inflation rate closed 5.2 communication costs 4.2 development policy afrique.*.