Perhaps you should try some spelling variations:
"health evidence network synthesis report" » "health guidance network synthesis report", "health dence network synthesis report", "health incidence networks synthesis report"
"health finance network synthesis report" » "health financial network synthesis report", "health distance network synthesis report", "health guidance network synthesis report", "health financing network synthesis report", "health insurance network synthesis report"
"health science network systems report" » "health sciences network systems report", "health science networks systems report", "health science work systems report", "health science network system report", "health science network systems support", "health science network systems recent"
"earth guide network systems report" » "earth guide network system report", "earth guide network systems support", "earth guide network systems recent", "earth guided network systems report", "earth side network systems report", "earth wide network systems report", "health guide network systems report", "search guide network systems report", "bath guide network systems 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 finance network synthesis report") OR ((("health science network systems report") OR ("earth guide network systems report")))))).
• Removing quotes may allow a broader search: (( health evidence network synthesis report ) or ((( health finance network synthesis report ) or ((( health science network systems report ) or ( earth guide network systems report )))))).
• Adding a wildcard symbol may retrieve word variants: (("health evidence network synthesis report") or ((("health finance network synthesis report") or ((("health science network systems report") or ("earth guide network systems report"))))))*.