Perhaps you should try some spelling variations:
tan cheng » tang zheng, yuan cheng, tan hong
yang july » yang judy, yang jui, yang jun
shang kai » shang hai
wei chen » frei chen, jui chen, yi chen
wei shen » kwei sheng, enwei shen, wei shang
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 cheng ((wei chen) OR (wei shen)) ((((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 cheng ((wei chen) OR (wei shen)) ((((yang xi) OR (yang di))) OR (yang july)) shang kai ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tin tan cheng ((wei chen) OR (wei shen)) ((((yang xi) or (yang di))) or (yang july)) shang kai ;*".