Perhaps you should try some spelling variations:
changes made » changes a, changes due
yan zhang » yuan chang, bin zhang, han chang
yin hang » yin fang, yin yang, ying chang
wei shen » kwei sheng, enwei shen, wei shang
yang jie » yang jin, yang di, yang jui
hong hai » shang hai, zhong tai, dang hai
yang xi » yang di, 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: wan ((yan zhang) or (yin hang)) wei shen ((yang jie) or (yang xi)) ((hong hai) or (changes made)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wan ((yan zhang) OR (yin hang)) wei shen ((yang jie) OR (yang xi)) ((hong hai) OR (changes made)) ;.
• Adding a wildcard symbol may retrieve word variants: wan ((yan zhang) or (yin hang)) wei shen ((yang jie) or (yang xi)) ((hong hai) or (changes made)) ;*.