Perhaps you should try some spelling variations:
evidence network » science network, guidance network, dence network
health guidance » health evidence, health finance, health substance
systems report » system report, systems support, systems recent
science work » science works, science world, science where
side network » wide network, inside network, guide network

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