Perhaps you should try some spelling variations:
yang july » yang judy, yang jui, yang jun
shang kai » shang hai
tan chen » tan cheng, ta chen, jane chen
chen wei » zhen wei, chen e
wei chen » wei shen, frei chen, jui chen
tin tan » tan tan, tin can, wing tan
yang xi » yang yi, yang jui

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

• Performing a fuzzy search may retrieve terms with similar spellings: tin tan chen wei chen ((((yang xi) or (yang di))) or (yang july)) shang kai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tin tan chen wei chen ((((yang xi) OR (yang di))) OR (yang july)) shang kai ;*.