Perhaps you should try some spelling variations:
"health insurance network synthesis report" » "health insurance networks synthesis report", "health assurance network synthesis report", "health assurance networks synthesis report"
"health evidence network synthesis report" » "health science network synthesis report", "health dence network synthesis report", "health incidence networks synthesis report"
"health guidance network system report" » "health finance network system report", "health impedance network system report", "health science network system report", "health substance network system report", "health guidance networked systems report", "health guidance network system reform", "health guidance network system support", "health guidance network system recent"
"health guide network systems report" » "health guide network systems support", "health guide network systems recent", "health guide network systems transport", "health guide networked systemss report", "health side network systems report", "health wide network systems report", "health inside network systems report", "health guido network systems report", "earth guide network systems report", "health grid network systems report"
"health guided network systems report" » "health guided network systems support", "health guided network systems recent", "health guided network systems transport", "health guided networked systemss report", "hath guided network systems report", "health guido network systems report", "health founded network systems report", "health guidod network systems report", "earth guided network systems report", "health gridd network systems 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 guide network systems report") OR ("health guidance network system report"))) OR ("health guided network systems report"))) OR ("health insurance network synthesis report")))).
• Removing quotes may allow a broader search: (( health evidence network synthesis report ) or ((((((( health guide network systems report ) or ( health guidance network system report ))) or ( health guided network systems report ))) or ( health insurance network synthesis report )))).
• Adding a wildcard symbol may retrieve word variants: (("health evidence network synthesis report") or ((((((("health guide network systems report") or ("health guidance network system report"))) or ("health guided network systems report"))) or ("health insurance network synthesis report"))))*.