Perhaps you should try some spelling variations:
"clinical sciences / philosophy" » "clinical science / philosophy", "technical sciences / philosophy", "empirical sciences / philosophy"
"chemical sciences / philosophy" » "medical sciences / philosophy", "mathematical sciences / philosophy"
"physical sciences / philosophy" » "medical sciences / philosophy"

Try widening your search to All Fields.

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: (("clinical sciences / philosophy") OR ((("chemical sciences / philosophy") OR ("physical sciences / philosophy")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"clinical sciences / philosophy\") or (((\"chemical sciences / philosophy\") OR (\"physical sciences / philosophy\"))))".
• Removing quotes may allow a broader search: (( clinical sciences / philosophy ) or ((( chemical sciences / philosophy ) OR ( physical sciences / philosophy )))).
• Adding a wildcard symbol may retrieve word variants: (("clinical sciences / philosophy") or ((("chemical sciences / philosophy") OR ("physical sciences / philosophy"))))*.