Perhaps you should try some spelling variations:
networks synthesis » networks systems, nets synthesis
"health evidence network synthesis report" » "health evidence network systems report", "health science network synthesis report", "health dence network synthesis report", "health incidence networks synthesis report"
"health guidance network synthesis report" » "health guidance network systems report", "health finance network synthesis report", "health impedance network synthesis report", "health guided network synthesis report", "health substance network synthesis report"
"health guide network synthesis report" » "health guide network systems report", "health guided network synthesis report", "health side network synthesis report", "health wide network synthesis report", "earth guide network synthesis report", "health grid network synthesis report"
"health guido network synthesis report" » "health guido network systems report", "health guided network synthesis report", "health sudo network synthesis report", "health guided networks synthesis report", "health gindo network synthesis report", "health grid network synthesis report", "health guiding network synthesis report"
death incidence » growth incidence, dengue incidence
health science » health sciences

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 ("((death incidence) or (health science)) networks synthesis report"))) OR ((("health guidance network synthesis report") OR ((("health guide network synthesis report") OR ("health guido network synthesis report")))))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"health evidence network synthesis report\") or (\"((death incidence) or (health science)) networks synthesis report\"))) or (((\"health guidance network synthesis report\") or (((\"health guide network synthesis report\") OR (\"health guido network synthesis report\"))))))".
• Removing quotes may allow a broader search: (((( health evidence network synthesis report ) or ( ((death incidence) or (health science)) networks synthesis report ))) or ((( health guidance network synthesis report ) or ((( health guide network synthesis report ) OR ( health guido network synthesis report )))))).
• Adding a wildcard symbol may retrieve word variants: (((("health evidence network synthesis report") or ("((death incidence) or (health science)) networks synthesis report"))) or ((("health guidance network synthesis report") or ((("health guide network synthesis report") OR ("health guido network synthesis report"))))))*.