Perhaps you should try some spelling variations:
network synthesis » network systems
guidance network » guide network, finance network, impedance network
health guidance » health evidence, health finance, health substance
health devices » health device, health services, health advice
health service » health services
dence network » dense network, defence network, dense networks
health dence » health device, 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 dence network synthesis report ) OR ( ((health dence) OR (((health devices) OR (health service)))) network synthesis report ))) OR ( health guidance network synthesis report )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( health dence network synthesis report ) or ( ((health dence) or (((health devices) OR (health service)))) network synthesis report ))) or ( health guidance network synthesis report ))".
• Adding a wildcard symbol may retrieve word variants: (((( health dence network synthesis report ) or ( ((health dence) or (((health devices) OR (health service)))) network synthesis report ))) or ( health guidance network synthesis report ))*.