Perhaps you should try some spelling variations:
"health guidance network synthesis report" » "health guide network synthesis report", "health finance network synthesis report", "health impedance network synthesis report", "health evidence network synthesis report", "health substance network synthesis report"
"health sciences network synthesis report" » "earth sciences network synthesis report"
"health sciences network systems report" » "earth sciences network systems report", "health sciences network system report", "health sciences network systems support", "health sciences network systems recent"
"health dence network synthesis report" » "health dense network synthesis report", "health defence network synthesis report", "health dense networks synthesis report", "health device network synthesis report", "health evidence network synthesis report", "health science 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 sciences network synthesis report") OR ("health sciences network systems report"))) OR ("health dence network synthesis report"))) OR ("health guidance network synthesis report")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"health sciences network synthesis report\") OR (\"health sciences network systems report\"))) or (\"health dence network synthesis report\"))) or (\"health guidance network synthesis report\"))".
• Removing quotes may allow a broader search: (((((( health sciences network synthesis report ) OR ( health sciences network systems report ))) or ( health dence network synthesis report ))) or ( health guidance network synthesis report )).
• Adding a wildcard symbol may retrieve word variants: (((((("health sciences network synthesis report") OR ("health sciences network systems report"))) or ("health dence network synthesis report"))) or ("health guidance network synthesis report"))*.