Perhaps you should try some spelling variations:
figure communication » failure communication, secure communication, fracture communication
rural development » social development
technology 4.2 » technology 2.2, technology 3.2, technology 4.1
relative real » relative sea, negative real, relative well
4.2 relative » 2.2 relative, 1.2 relative, 3.2 relative
rates figure » wages figure, prices figure, areas figure
china labor » china labour, china's labor, child labor
real rates » real rate, retail rates, real cases

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

• Adding a wildcard symbol may retrieve word variants: technology 4.2 relative real rates figure communication _ rural development china labor.*.