Perhaps you should try some spelling variations:
scale communication » scales communication, space communication, style communication
risk minimization » cost minimization, waste minimization, risk mitigation
minimization part » minimization _, utilization part, elimination part
communication gas » communication gaps, communication gap, communication gets
sensors developed » less developed
gas sensors » gas sectors
iv scale » 2 scale, 3 scale, iv state
part iv » part i, part ii, part iii

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

• Adding a wildcard symbol may retrieve word variants: technology risk minimization part iv scale communication gas sensors developed _ afrique.*.