Perhaps you should try some spelling variations:
substance network » distance network, substrate network, resistance network
health resistance » health assistance, earth resistance, health resilience
heat resistance » least resistance, host resistance, heat resistant
systems report » system report, systems support, systems recent
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 substance network systems report ) OR ( ((health resistance) OR (heat resistance)) network systems report )))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( health dence network synthesis report ) or ((( health substance network systems report ) or ( ((health resistance) OR (heat resistance)) network systems report ))))".
• Adding a wildcard symbol may retrieve word variants: (( health dence network synthesis report ) or ((( health substance network systems report ) or ( ((health resistance) OR (heat resistance)) network systems report ))))*.