Perhaps you should try some spelling variations:
networked systems » network systems
health incidence » death incidence, health incident, health evidence
networks systems » network systems, networks system, networking systems
guidance network » guide network, finance network, guided network
network system » network systems
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 incidence ((networks systems) OR (network system)) recent ) OR ( ((health incidence) OR (health science)) networked systems recent ))) OR ( health ((guidance network) OR (impedance network)) synthesis report )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( health incidence ((networks systems) OR (network system)) recent ) or ( ((health incidence) or (health science)) networked systems recent ))) or ( health ((guidance network) or (impedance network)) synthesis report ))".
• Adding a wildcard symbol may retrieve word variants: (((( health incidence ((networks systems) OR (network system)) recent ) or ( ((health incidence) or (health science)) networked systems recent ))) or ( health ((guidance network) or (impedance network)) synthesis report ))*.