Perhaps you should try some spelling variations:
"health impedance network synthesis report" » "health importance network synthesis report", "health temperance network synthesis report", "head impedance network synthesis report"
"health science shock synthesis report" » "health science theory synthesis report", "health sciences shock synthesis report", "health science stock synthesis report", "health science shop synthesis report", "health science short synthesis report"
"health defence network systems report" » "health defense network systems report", "health defenses network systems report", "health defense networks systems report", "health adherence network systems report", "health reference network systems report", "health terrence network systems report", "health defence network system report", "health defence network systems support", "health defence network systems recent"

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 shock synthesis report") OR ("health defence network systems report"))) OR ("health impedance network synthesis report")).
• Removing quotes may allow a broader search: (((( health science shock synthesis report ) or ( health defence network systems report ))) or ( health impedance network synthesis report )).
• Adding a wildcard symbol may retrieve word variants: (((("health science shock synthesis report") or ("health defence network systems report"))) or ("health impedance network synthesis report"))*.