Perhaps you should try some spelling variations:
evidence network » guidance network, dence network, incidence networks
science network » sciences network, science networks, sequence networks
health evidence » health science
systems report » system report, systems support, systems recent
science work » science works, science world, science where

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