Perhaps you should try some spelling variations:
"Health evidence network synthesis report" » "Health evidence network systems report", "Health dence network synthesis report", "Health incidence networks synthesis report", "Health resilience network synthesis report"
"Health science network synthesis report" » "Health science network systems report", "Health sciences network synthesis report", "Health science networks synthesis report", "Health science work synthesis 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 substance network synthesis report"
health science » health sciences

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