Perhaps you should try some spelling variations:
"health reference network synthesis report" » "health reference networks synthesis report", "health inference network synthesis report", "health inference networks synthesis report", "health reference network systems report", "health references network synthesis report", "healthy reference network synthesis report", "earth reference 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 defence network synthesis report" » "health defence network systems report", "health defense network synthesis report", "health defense networks synthesis report", "health dence network synthesis report", "health adherence network synthesis report", "health terrence network synthesis report", "health device network synthesis report"
"health defenses network synthesis report" » "health defenses network systems report", "health defense network synthesis report", "health defenses new synthesis report", "heart defenses network synthesis report", "health diseases network synthesis report", "health depends network 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 evidence network synthesis report", "health substance network synthesis 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 science network synthesis report") OR ((((("health defence network synthesis report") OR ("health reference network synthesis report"))) OR ("health defenses network synthesis report"))))) OR ("health guidance network synthesis report")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"health science network synthesis report\") or (((((\"health defence network synthesis report\") OR (\"health reference network synthesis report\"))) or (\"health defenses network synthesis report\"))))) or (\"health guidance network synthesis report\"))".
• Removing quotes may allow a broader search: (((( health science network synthesis report ) or ((((( health defence network synthesis report ) OR ( health reference network synthesis report ))) or ( health defenses network synthesis report ))))) or ( health guidance network synthesis report )).
• Adding a wildcard symbol may retrieve word variants: (((("health science network synthesis report") or ((((("health defence network synthesis report") OR ("health reference network synthesis report"))) or ("health defenses network synthesis report"))))) or ("health guidance network synthesis report"))*.