Perhaps you should try some spelling variations:
networks synthesis » networks systems, nets synthesis
network synthesis » network systems
health incidence » health incident, health science, health evidence
distance network » distance networks, resistance network, disease network
death incidence » growth incidence, dengue incidence
health distance » healthy distance, earth distance, health assistance
guide network » side network, wide network, inside network
health guided » hath guided, health guido, health founded
health guide » health guido, earth guide, health grid

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 incidence) OR (death incidence)) networks synthesis report ) OR ((((( health guide network synthesis report ) OR ( health guided network synthesis report ))) OR ( health distance network synthesis report )))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( ((health incidence) OR (death incidence)) networks synthesis report ) or ((((( health guide network synthesis report ) or ( health guided network synthesis report ))) or ( health distance network synthesis report ))))".
• Adding a wildcard symbol may retrieve word variants: (( ((health incidence) OR (death incidence)) networks synthesis report ) or ((((( health guide network synthesis report ) or ( health guided network synthesis report ))) or ( health distance network synthesis report ))))*.