Perhaps you should try some spelling variations:
"china academic officer" » "china academic officers", "china academic cancer", "china academic choices", "teaching academic officer"
"china academic oliver" » "china academic officers", "china academic policies", "teaching academic oliver"

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"china academic officer\") OR (\"china academic oliver\"))".
• Removing quotes may allow a broader search: (( china academic officer ) OR ( china academic oliver )).
• Adding a wildcard symbol may retrieve word variants: (("china academic officer") OR ("china academic oliver"))*.