Perhaps you should try some spelling variations:
network synthesis » network systems
evidence network » science network, dence network, evidence work
guidance network » guide network, finance network, impedance network
health evidence » health science
health finance » health insurance

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 guidance network synthesis report ))) OR ( ((((health guidance) OR (health substance))) OR (((health finance) OR (health financing)))) network synthesis report )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( health evidence network synthesis report ) or ( health guidance network synthesis report ))) or ( ((((health guidance) or (health substance))) or (((health finance) OR (health financing)))) network synthesis report ))".
• Adding a wildcard symbol may retrieve word variants: (((( health evidence network synthesis report ) or ( health guidance network synthesis report ))) or ( ((((health guidance) or (health substance))) or (((health finance) OR (health financing)))) network synthesis report ))*.