Perhaps you should try some spelling variations:
change tuning » change using, change buying, change during
tuning point » turning point, turning points, ting point
rene change » leone change, trend change, rate change
point data » joint data
yuan wang » yan wang, yuan kang, yuan chang
hua rene » hua ren, juan rene

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

• Performing a fuzzy search may retrieve terms with similar spellings: yang ((yue man) or (yuan wang)) hua rene change tuning point data ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: yang ((yue man) OR (yuan wang)) hua rene change tuning point data ;*.