Perhaps you should try some spelling variations:
data communication » data communications
urban development » human development
formation law » information law, deformation law, formation can
technology 1 » technology _
goals africa » gays africa, loans africa, roads africa
1 formation » 1.2 formation, de formation, en formation
3.1 data » 2.1 data
law 3.1 » law 3.2

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• Adding a wildcard symbol may retrieve word variants: technology 1 formation law 3.1 data communication disorders urban development goals africa.*.