Perhaps you should try some spelling variations:
convergence network » converged networks, convergence between
health consequence » health consequences, health conference, realist consequence
health convergence » health conference, real convergence, health conferences
network synthesis » network systems
evidence network » science network, guidance network, dence network
health impedance » health importance, health temperance, head impedance
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 evidence network synthesis report ) OR ((( ((health consequence) OR (healthconsequences _)) network synthesis report ) OR ( health convergence network synthesis report ))))) OR ( health impedance network synthesis report )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( health evidence network synthesis report ) or ((( ((health consequence) OR (healthconsequences _)) network synthesis report ) or ( health convergence network synthesis report ))))) or ( health impedance network synthesis report ))".
• Adding a wildcard symbol may retrieve word variants: (((( health evidence network synthesis report ) or ((( ((health consequence) OR (healthconsequences _)) network synthesis report ) or ( health convergence network synthesis report ))))) or ( health impedance network synthesis report ))*.