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 report"
"health guidance network synthesis report" » "health guidance network systems report", "health guide network synthesis report", "health finance network synthesis report", "health impedance network synthesis report", "health evidence network synthesis report"
"health science walk synthesis report" » "health sciences walk synthesis report", "health science wall synthesis report", "health science mask synthesis report", "health science work synthesis report", "health sciences wals synthesis report", "health science talks synthesis report"

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