Perhaps you should try some spelling variations:
social communication » oral communication, digital communication, visual communication
communication cost » communication costs, communication costa, communications costs
series function » services functions, service function, versus function
2.4 development » 2.3 development, 2.1 development, 2.2 development
function bias » truncation bias, function based, function a
a americans » _ americans, 6 americans, a american
non social » von social, union social, can social

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

• Adding a wildcard symbol may retrieve word variants: technology series function bias non social communication cost 2.4 development a americans.*.