Perhaps you should try some spelling variations:
network synthesis » network systems
guidance network » guide network, finance network, impedance network
health sequence » health consequence, length sequence, breath sequence
health guidance » health finance, health substance
health science » health sciences
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) OR (health science)) network synthesis report ) OR ( ((((health sequence) OR (health sequelae))) OR (heart sequence)) network synthesis report ))) OR ( health guidance network synthesis report )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( ((health evidence) or (health science)) network synthesis report ) or ( ((((health sequence) OR (health sequelae))) or (heart sequence)) network synthesis report ))) or ( health guidance network synthesis report ))".
• Adding a wildcard symbol may retrieve word variants: (((( ((health evidence) or (health science)) network synthesis report ) or ( ((((health sequence) OR (health sequelae))) or (heart sequence)) network synthesis report ))) or ( health guidance network synthesis report ))*.