Perhaps you should try some spelling variations:
networks synthesis » networks systems, nets synthesis
"health substance network systems report" » "health distance network systems report", "health substrate network systems report", "health resistance network systems report", "health substance network system report", "health substance network systems support", "health substance network systems recent"
"health guidance network systems report" » "health finance network systems report", "health impedance network systems report", "health guided network systems report", "health guidance network system report", "health guidance network systems support", "health guidance network systems recent"
health evidence » health science
health incident » health including
"health dence network synthesis report" » "health dense network synthesis report", "health defence network synthesis report", "health dense networks synthesis report", "health device network synthesis report", "health science network synthesis report", "health devices network synthesis report"
"health guide network synthesis report" » "health guided network synthesis report", "health side network synthesis report", "health wide network synthesis report", "health guido network synthesis report", "earth guide network synthesis report", "health grid network synthesis 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 dence network synthesis report") OR ("((health evidence) or (health incident)) networks synthesis report"))) OR ((("health guide network synthesis report") OR ((("health guidance network systems report") OR ("health substance network systems report")))))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"health dence network synthesis report\") or (\"((health evidence) or (health incident)) networks synthesis report\"))) or (((\"health guide network synthesis report\") or (((\"health guidance network systems report\") OR (\"health substance network systems report\"))))))".
• Removing quotes may allow a broader search: (((( health dence network synthesis report ) or ( ((health evidence) or (health incident)) networks synthesis report ))) or ((( health guide network synthesis report ) or ((( health guidance network systems report ) OR ( health substance network systems report )))))).
• Adding a wildcard symbol may retrieve word variants: (((("health dence network synthesis report") or ("((health evidence) or (health incident)) networks synthesis report"))) or ((("health guide network synthesis report") or ((("health guidance network systems report") OR ("health substance network systems report"))))))*.