Perhaps you should try some spelling variations:
transit systems » transport systems, transport system
labor transfers » land transfers, water transfers
roman transit » human transit, roman transport, formal transit
systems gross » systems cross, systems across, systems growth
vagues model » aries model, glues model, issues model
model labor » modeling labor, modern labour, border labor
vagues de » vague de, values de, langues de
de roman » der roman, dem roman, du roman

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 de roman transit systems gross ) OR ( vagues model labor transfers _ cao ))~.
• Adding a wildcard symbol may retrieve word variants: (( vagues de roman transit systems gross ) or ( vagues model labor transfers _ cao ))*.