Perhaps you should try some spelling variations:
"health service networks synthesis report" » "health service networks systems report", "health services networks synthesis report"
"health evidence network synthesis report" » "health science network synthesis report", "health guidance network synthesis report", "health dence network synthesis report"
"health evidence network systems report" » "health science network systems report", "health guidance network systems report", "health dence network systems report", "health evidence network system report", "health evidence network systems support", "health evidence network systems recent"
"health impedance network synthesis report" » "health importance network synthesis report", "health temperance network synthesis report", "head impedance network synthesis report"
"health service nets synthesis report" » "health services nets synthesis report", "health service net synthesis report", "health service dots synthesis report", "health service its synthesis report", "health service sets synthesis report", "health service ets synthesis report", "health service pets 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 evidence network synthesis report") OR ((("health service networks synthesis report") OR ("health service nets synthesis report"))))) OR ("health evidence network systems report"))) OR ("health impedance network synthesis report")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"health evidence network synthesis report\") or (((\"health service networks synthesis report\") OR (\"health service nets synthesis report\"))))) or (\"health evidence network systems report\"))) or (\"health impedance network synthesis report\"))".
• Removing quotes may allow a broader search: (((((( health evidence network synthesis report ) or ((( health service networks synthesis report ) OR ( health service nets synthesis report ))))) or ( health evidence network systems report ))) or ( health impedance network synthesis report )).
• Adding a wildcard symbol may retrieve word variants: (((((("health evidence network synthesis report") or ((("health service networks synthesis report") OR ("health service nets synthesis report"))))) or ("health evidence network systems report"))) or ("health impedance network synthesis report"))*.