Perhaps you should try some spelling variations:
"health evidence network synthesis report" » "health science network synthesis report", "health dence network synthesis report", "health incidence networks synthesis report"
"Health guidance network systems recent" » "Health guide network systems recent", "Health finance network systems recent", "Health science network systems recent"
"health impedance network systems recent" » "health importance network systems recent", "health temperance network systems recent", "head impedance network systems recent"
health guidance » health finance, health substance
health guided » health guide, hath guided, health guido

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 guidance network systems recent") OR ("Health guided network systems recent"))) OR ("health impedance network systems recent")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"health evidence network synthesis report\") or (((((\"Health guidance network systems recent\") OR (\"Health guided network systems recent\"))) or (\"health impedance network systems recent\"))))".
• Removing quotes may allow a broader search: (( health evidence network synthesis report ) or ((((( Health guidance network systems recent ) OR ( Health guided network systems recent ))) or ( health impedance network systems recent )))).
• Adding a wildcard symbol may retrieve word variants: (("health evidence network synthesis report") or ((((("Health guidance network systems recent") OR ("Health guided network systems recent"))) or ("health impedance network systems recent"))))*.