Perhaps you should try some spelling variations:
assurance networks » assurance network, insurance networks, alliance networks
networks synthesis » networks systems, nets synthesis
network synthesis » network systems
evidence network » science network, guidance network, dence network
health assurance » health reassurance, health insurance, health assistance
health evidence » health science

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: (( health evidence network synthesis report ) OR ( health assurance networks synthesis report )).
• Adding a wildcard symbol may retrieve word variants: (( health evidence network synthesis report ) or ( health assurance networks synthesis report ))*.