Perhaps you should try some spelling variations:
changes made » changes a, changes due
yan zhang » yuan chang, bin zhang, han chang
zhang wei » zhen wei
wei shen » kwei sheng, enwei shen, wei shang
yang jie » yang jin, yang di, yang jui
chang ha » chang mae
tan yan » tan yang, nan yan, tan tan
yang xi » yang di, yang jui
yang yi » yang di, 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: tan yan zhang wei shen ((((yang jie) or (yang xi))) or (yang yi)) ((chang ha) or (changes made)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tan yan zhang wei shen ((((yang jie) OR (yang xi))) OR (yang yi)) ((chang ha) OR (changes made)) ;*.