Perhaps you should try some spelling variations:
network synthesis » network systems
evidence network » science network, dence network, incidence networks
guidance network » guide network, finance network, impedance network
health sequence » health sequelae, health consequence, health science
health guidance » health evidence, health finance
heart sequence » heart sequences, charts sequence, header sequence

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