Perhaps you should try some spelling variations:
network synthesis » network systems
evidence network » guidance network, dence network, incidence networks
science network » sciences network, science networks, science work
health science » health sciences
guide network » guided network, side network, wide network
health guide » health guido, earth guide, 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 science network synthesis report ))) OR ( health guide network synthesis report )).
• Adding a wildcard symbol may retrieve word variants: (((( health evidence network synthesis report ) or ( health science network synthesis report ))) or ( health guide network synthesis report ))*.