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 substance network systems support" » "health distance network systems support", "health substrate network systems support", "health resistance network systems support", "health substance network system support", "health substance network systems supporting", "health substance network system supporting"
"health evidence network synthesis report" » "health science network synthesis report", "health guidance network synthesis report", "health dence network 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 evidence network synthesis report") OR ((("health substance network synthesis report") OR ("health substance network systems support")))).
• Removing quotes may allow a broader search: (( health evidence network synthesis report ) or ((( health substance network synthesis report ) or ( health substance network systems support )))).
• Adding a wildcard symbol may retrieve word variants: (("health evidence network synthesis report") or ((("health substance network synthesis report") or ("health substance network systems support"))))*.