Perhaps you should try some spelling variations:
"health science risks synthesis report" » "health science resins synthesis report", "health science bases synthesis report", "health science amines synthesis report", "health sciences risks synthesis report", "health science risk synthesis report", "health science tasks synthesis report", "health science rise synthesis report"
"health guide edrf synthesis report" » "health guide wdf synthesis report", "health guide f synthesis report", "health guide paf synthesis report", "health guido edrf synthesis report", "earth guide edrf synthesis report", "health grid edrf synthesis report"

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 science risks synthesis report") OR ("health guide edrf synthesis report")).
• Removing quotes may allow a broader search: (( health science risks synthesis report ) or ( health guide edrf synthesis report )).
• Adding a wildcard symbol may retrieve word variants: (("health science risks synthesis report") or ("health guide edrf synthesis report"))*.