Perhaps you should try some spelling variations:
2.2.4 communication » 12.2.4 communication, 2.2.3 communication, 4.2.4 communication
seismology volume » technology volume
volume inflation » volume ventilation, volume evaluation, core inflation
inflation rates » inflation rate
development law » development latin, development 1
law afrique » l afrique
rates case » rates cape, states case, rates east
case 2.2.4 » coase 2.2.4, case 2.2.1, case 2.2.2
costs 2 » costs 20, costs _, costs 4

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• Adding a wildcard symbol may retrieve word variants: seismology volume inflation rates case 2.2.4 communication costs 2 development law afrique.*.