Perhaps you should try some spelling variations:
transition systems » transmission systems, transit systems, transactions system
sector transformed » sector transforming, labor transformed, sector transfers
failed transition » family transition, guided transition, labelled transition
systems gross » systems cross, systems across, systems growth
money sector » money section, monetary sector, mooney section
areas money » areas model, areas move, areas modify
vagues a » values a, vagues de, vague _
a failed » _ failed

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( vagues a failed transition systems gross ) OR ( areas money sector transformed _ cao ))~.
• Adding a wildcard symbol may retrieve word variants: (( vagues a failed transition systems gross ) or ( areas money sector transformed _ cao ))*.