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 evidence network synthesis report" » "health evidence network systems report", "health guidance network synthesis report", "health dence network synthesis report", "health incidence networks synthesis report"
"health science network synthesis report" » "health science network systems report", "health science networks synthesis report", "health science work synthesis report", "health sequence networks synthesis report"
"health sciences network synthesis report" » "health sciences network systems report", "earth sciences network 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 evidence network synthesis report") OR ((("health science network synthesis report") OR ("health sciences 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 synthesis report\") or (((\"health science network synthesis report\") OR (\"health sciences network synthesis report\"))))) or (\"health substance network synthesis report\"))*".
• Removing quotes may allow a broader search: (((( health evidence network synthesis report ) or ((( health science network synthesis report ) OR ( health sciences network synthesis report ))))) or ( health substance network synthesis report ))*.