Perhaps you should try some spelling variations:
evidence network » science network, guidance network, dence network
health evidence » health science
finance network » financial network, distance network, guidance network
health finance » health financing, health insurance
systems report » systems support, systems recent, systems transport
network system » networked systems
system report » system reform, system support, system recent

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