Perhaps you should try some spelling variations:
guidance network » guide network, finance network, impedance network
health guidance » health evidence, health substance
health finance » health financing, health insurance
network system » networked systems

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