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 systems report" » "health science network systems report", "health dence network systems report", "health incidence networks systems report", "health evidence network systems support", "health evidence network systems recent", "health evidence network systems transport", "health evidence networked systemss report"
health device » health service, health services
system report » system reform, system support, system recent
health dence » health science, health devices, health degree

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