Perhaps you should try some spelling variations:
incidence networks » inference networks, influence networks, science networks
evidence network » science network, guidance network, dence network
health sequence » health sequelae, heart sequence, health consequence

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