Perhaps you should try some spelling variations:
communication methods » communication networks, communication network, communications networks
oral communication » mobile communication, _ communication, risk communication
technologies poor » technologies sector, technologies could, technologies _
poor information » labor information, how information, do information
g20 development » 20 development, 2020 development, 4.0 development
methods g20 » methods l520, methods c830, methods c530
flows de » flows do, flows debt, flows _

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

• Adding a wildcard symbol may retrieve word variants: technologies poor information flows de oral communication methods g20 development _ afrique.*.