Perhaps you should try some spelling variations:
changes made » changes a, changes due
wang qian » wang qiao, wang qin, wang liang
qian wang » yiqian wang, qian rong, qian yan
chang mae » chang ha
zhong zhi » zhang zhi, hong ghi
zhong tai » hong tan, hong hai
yan sher » khan sher, can she, han shen

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

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