Perhaps you should try some spelling variations:
changes made » changes a, changes due
juan rene » juan meng, juan rana
sang minh » kang minah, anh minh, song min
yan juan » san juan, yan guan, yan yuan
tang min » chang min, yang mind, tang li
hong ghi » zhong zhi, hong g, hong hai
yan yan » yan yuan, nan yan, yang yang

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

• Performing a fuzzy search may retrieve terms with similar spellings: (wing or wan) yan yan juan rene ((((tang min) or (sang minh))) or (changes made)) hong ghi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (wing OR wan) yan yan juan rene ((((tang min) OR (sang minh))) OR (changes made)) hong ghi ;.
• Adding a wildcard symbol may retrieve word variants: (wing or wan) yan yan juan rene ((((tang min) or (sang minh))) or (changes made)) hong ghi ;*.