Perhaps you should try some spelling variations:
networks synthesis » networks systems, nets synthesis
evidence networks » evidence network, incidence networks, science networks
network synthesis » network systems
guidance network » finance network, impedance network, guided network
health evidence » health science
health guidance » health finance, health substance
network system » network systems, networked systems
dence network » dense network, defence network, dense networks
system report » system reform, system support, system recent
guide network » guided network, side network, wide network
health dence » health device, health science, health devices
health guide » health guido, earth guide, health side
grid network » grid networks, hybrid network, world network
health grid » health guido, health good, health hybrid
gis network » geis network, gis networks, nis network
health gis » health gains, health gods, health gap

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 networks synthesis report ) OR ( health dence network system report ))) OR ((((( health guidance network synthesis report ) OR ( health guide network synthesis report ))) OR ((( health grid network synthesis report ) OR ( health gis network synthesis report )))))).
• Adding a wildcard symbol may retrieve word variants: (((( health evidence networks synthesis report ) or ( health dence network system report ))) or ((((( health guidance network synthesis report ) or ( health guide network synthesis report ))) or ((( health grid network synthesis report ) or ( health gis network synthesis report ))))))*.