Perhaps you should try some spelling variations:
communication costly » communication costs, communication costa, communications costs
de communication » mobile communication, online communication
than development » chain development, town development, plan development
technology user » technology users, technology use, technology used
user innovation » der innovation, serie innovation, gender innovation
innovation 1 » innovation _, innovation a
costly than » costly trade
africa era » africa eiu, africa eu, africa en
die de » die die, die der, die den
1 die » 2 die, 3 die, _ die

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

• Adding a wildcard symbol may retrieve word variants: technology user innovation 1 die de communication costly than development africa era.*.