Perhaps you should try some spelling variations:
"health substance network synthesis report" » "health distance network synthesis report", "health substrate network synthesis report", "health resistance network synthesis report"
"health guidance network synthesis report" » "health guide network synthesis report", "health finance network synthesis report", "health impedance network synthesis report", "health evidence network synthesis report"
"health guidance network systems report" » "health guide network systems report", "health finance network systems report", "health impedance network systems report", "health evidence network systems report", "health guidance network system report", "health guidance network systems support", "health guidance network systems transport"
"health guidance network systems recent" » "health guide network systems recent", "health finance network systems recent", "health impedance network systems recent", "health evidence network systems recent"
health device » health service, health services
health dence » health evidence, health science, health devices

Try widening your search to All Fields.

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 dence) or (health device)) network synthesis report") OR ((((("health guidance network synthesis report") OR ("health substance network synthesis report"))) OR ((("health guidance network systems report") OR ("health guidance network systems recent")))))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"((health dence) or (health device)) network synthesis report\") or (((((\"health guidance network synthesis report\") OR (\"health substance network synthesis report\"))) or (((\"health guidance network systems report\") or (\"health guidance network systems recent\"))))))".
• Removing quotes may allow a broader search: (( ((health dence) or (health device)) network synthesis report ) or ((((( health guidance network synthesis report ) OR ( health substance network synthesis report ))) or ((( health guidance network systems report ) or ( health guidance network systems recent )))))).
• Adding a wildcard symbol may retrieve word variants: (("((health dence) or (health device)) network synthesis report") or ((((("health guidance network synthesis report") OR ("health substance network synthesis report"))) or ((("health guidance network systems report") or ("health guidance network systems recent"))))))*.