Perhaps you should try some spelling variations:
networks synthesis » networks systems, nets synthesis
distance networks » distance network, resistance network, state networks
network synthesis » network systems
evidence network » science network, guidance network, dence network
health evidence » health science
health distance » healthy distance, earth distance, health assistance
guido network » guide network, guided network, sudo network
health guido » health guide, health gindo, health grid

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