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