Perhaps you should try some spelling variations:
system supportinging » systems supporting, systems supportingfixed, stem supporting
system supporting » systems supporting, system support
network synthesis » network systems
health device » health service, health services
health dence » health evidence, health science, health devices

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) or (health device)) network synthesis report") OR ("((health dence) or (health device)) network ((systems recent) or (((system supporting) or (system supportinging))))")).
• Removing quotes may allow a broader search: (( ((health dence) or (health device)) network synthesis report ) or ( ((health dence) or (health device)) network ((systems recent) or (((system supporting) or (system supportinging)))) )).
• Adding a wildcard symbol may retrieve word variants: (("((health dence) or (health device)) network synthesis report") or ("((health dence) or (health device)) network ((systems recent) or (((system supporting) or (system supportinging))))"))*.