Perhaps you should try some spelling variations:
changes made » changes a, changes due
wang yiqian » wang yidan
yiqian wang » yijiang wang, liqin wang, qian wang
zhang zhi » zhong zhi, wang zhi, zhang wei
yan sher » khan sher, can she
han shen » khan sher, can she, han en
chang ha » chang mae

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yiqian wang ((yan sher) OR (han shen)) ((changes made) or (chang ha)) zhang zhi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yiqian wang ((yan sher) OR (han shen)) ((changes made) OR (chang ha)) zhang zhi ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yiqian wang ((yan sher) OR (han shen)) ((changes made) or (chang ha)) zhang zhi ;".
• Adding a wildcard symbol may retrieve word variants: wang yiqian wang ((yan sher) OR (han shen)) ((changes made) or (chang ha)) zhang zhi ;*.