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 evidence network synthesis report" » "health guidance network synthesis report", "health dence network synthesis report", "health incidence networks synthesis report"
"health impedance network systems report" » "health importance network systems report", "health temperance network systems report", "head impedance network systems report", "health impedance network system report", "health impedance network systems support", "health impedance network systems recent"
"health science network synthesis report" » "health sciences network synthesis report", "health science networks synthesis report", "health science work synthesis report"

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 science network synthesis report") OR ("health evidence network synthesis report"))) OR ((("health substance network synthesis report") OR ("health impedance network systems report")))).
• Removing quotes may allow a broader search: (((( health science network synthesis report ) or ( health evidence network synthesis report ))) or ((( health substance network synthesis report ) or ( health impedance network systems report )))).
• Adding a wildcard symbol may retrieve word variants: (((("health science network synthesis report") or ("health evidence network synthesis report"))) or ((("health substance network synthesis report") or ("health impedance network systems report"))))*.