Perhaps you should try some spelling variations:
"health dence network synthesis report" » "health dence network systems 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 science network synthesis report"
health guidance » health evidence
health finance » health financing, health insurance

Try widening your search to All Fields.

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• If you are trying to use Boolean operators, they must be ALL CAPS: (("health dence network synthesis report") OR ("((((health guidance) or (health substance))) or (health finance)) network synthesis report")).
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• Adding a wildcard symbol may retrieve word variants: (("health dence network synthesis report") or ("((((health guidance) or (health substance))) or (health finance)) network synthesis report"))*.