Perhaps you should try some spelling variations:
"health substance network synthesis report" » "health distance network synthesis report", "health substrate network synthesis report", "health resistance 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 guidance network systems support", "health guidance network systems recent", "health guidance network systems transport", "health guidance networked systemss report"
"health dence network system report" » "health dence networked systems report", "health dense network system report", "health defence network system report", "health dense networks system report", "health dence network system reform", "health dence network system support", "health dence network system recent", "health device network system report", "health evidence network system report", "health science network system report"

You may be able to get more results by adjusting your search query.

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