Perhaps you should try some spelling variations:
nettheory synthesis » ethers synthesis, better synthesis, ether synthesis
network synthesis » network systems
evidence network » science network, guidance network, dence network
theory synthesis » therapy synthesis, ethers synthesis
guide nettheory » guide theory
health science » health sciences
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 theory synthesis report ))) OR ( health guide nettheory synthesis report )).
• Adding a wildcard symbol may retrieve word variants: (((( health evidence network synthesis report ) or ( health science theory synthesis report ))) or ( health guide nettheory synthesis report ))*.