Perhaps you should try some spelling variations:
technology 10.2.3 » technology 10.2.1, technology 1.2.3, technology 10.3.3
2.3 communication » 3.2 communication, de communication, 4 communication
10.2.3 inflation » 10.7 inflation, 2.2.4 inflation, 3.3.3 inflation
inflation rates » inflation rate
20 development » 2 development, 2015 development, 2007 development
rates date » rates data, rates rates, rates have
1 afrique » l afrique, en afrique, 1 enrique
date 2.3 » daten 2.3, data 2.3, rate 2.3
costs 20 » costs 60, costs 2.3, costs 2.1

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• Adding a wildcard symbol may retrieve word variants: technology 10.2.3 inflation rates date 2.3 communication costs 20 development 1 afrique.*.