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
dengue incidence » age incidence
death incidence » growth incidence
grid network » grid networks, hybrid network, world network
health grid » health guide, health guido, health gis

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