Perhaps you should try some spelling variations:
network synthesis » network systems
distance network » distance networks, resistance network, disease network
finance network » financial network, guidance network, finance work
health device » health service
system report » system reform, system reforms, system recent
health dence » health evidence, health science, health devices
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 dence) OR (((health device) OR (health services)))) network ((system report) OR (system support)) ) OR ((( health grid network synthesis report ) OR ( health ((finance network) OR (distance network)) synthesis report )))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( ((health dence) or (((health device) or (health services)))) network ((system report) or (system support)) ) or ((( health grid network synthesis report ) or ( health ((finance network) OR (distance network)) synthesis report ))))".
• Adding a wildcard symbol may retrieve word variants: (( ((health dence) or (((health device) or (health services)))) network ((system report) or (system support)) ) or ((( health grid network synthesis report ) or ( health ((finance network) OR (distance network)) synthesis report ))))*.