Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
why communication » de communication, 3 communication, 4 communication
help information » erp information, helpful information, cilip information
information more » information model, information korea, information mart
technology help » technologies help, technology how, technology human
more balanced » more advanced
envelopment l » development li, development 1
balanced why » balance why, balanced _, balance ch
cost data » test data
l afrique » en afrique

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

• Adding a wildcard symbol may retrieve word variants: technology help information more balanced why communication cost data envelopment l afrique.*.