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 guidance network synthesis report" » "health guidance network systems 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 dence » health device, health evidence, health science

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 network synthesis report")).
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