Perhaps you should try some spelling variations:
changes madeg » changes cases, changes mid
changes made » changes a, changes due
wang yuan » wang yuhan, wang yan, fang yuan
wang jing » wang liang, wang yang, wang yong
wang ning » wang liang, wang yang, wang yong
hong g » hong ng, hong w, hong 7

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yuan ((wang jing) OR (wang ning)) shen ((changes madeg) or (changes made)) hong g ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yuan ((wang jing) OR (wang ning)) shen ((changes madeg) OR (changes made)) hong g ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yuan ((wang jing) OR (wang ning)) shen ((changes madeg) or (changes made)) hong g ;*".