Perhaps you should try some spelling variations:
networks synthesis » networks systems, nets synthesis
network synthesis » network systems
substance network » distance network, substrate network, resistance network
evidence network » science network, guidance network, dence network
health incidence » death incidence, health science, path incidence
health including » wealth including, health concluding, death including
health evidence » health science

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