Perhaps you should try some spelling variations:
incidence networks » influence networks, science networks, incidents network
network synthesis » network systems
health guidance » health evidence
finance network » financial network, distance network, guidance network
health finance » health financing, health insurance
inference » conference

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 ((incidence networks) OR (inference networks)) synthesis report\") or (((\"((health guidance) OR (health substance)) network synthesis report\") or (\"health finance network synthesis report\"))))".
• The words AND, OR and NOT may confuse the search; try adding quotes: "\"((\\"health ((incidence networks) or (inference networks)) synthesis report\\") or (((\\"((health guidance) OR (health substance)) network synthesis report\\") or (\\"health finance network synthesis report\\"))))\"".
• Removing quotes may allow a broader search: (( health ((incidence networks) or (inference networks)) synthesis report ) or ((( ((health guidance) OR (health substance)) network synthesis report ) or ( health finance network synthesis report )))).