Perhaps you should try some spelling variations:
"chinese estate group" » "chinese state group", "chinese stage group", "chinese state's group", "chinese state groups"
"chinese tate groups" » "chinese state groups", "chinese taste groups", "chinese hate groups", "chinese age groups", "chinese large groups", "chinese gauge groups"

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: (("chinese estate group") OR ("chinese tate groups")).
• Removing quotes may allow a broader search: (( chinese estate group ) or ( chinese tate groups )).
• Adding a wildcard symbol may retrieve word variants: (("chinese estate group") or ("chinese tate groups"))*.