Perhaps you should try some spelling variations:
communication costly » communication costs, communication costa, communications costs
3.2 communication » 3 communication, 2.3 communication, de communication
land developing » island developing, lanka developing, brand developing
technology 2 » technology _, technology 1, technology 3
2 inflation » 12 inflation, _ inflation, 6 inflation
rate reduce » rates reduce, trade reduce, gates reduce
costly land » cost land, costs land, country land

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

• Adding a wildcard symbol may retrieve word variants: technology 2 inflation rate reduce 3.2 communication costly land developing _ afrique.*.