Perhaps you should try some spelling variations:
wang xiuyan » wang xuan
wang xinyan » wang bingnan
umfang 18 » umfang 3, umfang a, umfang b
cheng han » chen hao
bai chong » lai chung, wai chung, hai phong
18 cheng » _ cheng, yu cheng, 18 when
bai cong » yan cong, li cong

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wang xiuyan) or (wang xinyan)) umfang 18 cheng han ((bai cong) OR (bai chong)) shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang xiuyan) OR (wang xinyan)) umfang 18 cheng han ((bai cong) OR (bai chong)) shu ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang xiuyan) or (wang xinyan)) umfang 18 cheng han ((bai cong) OR (bai chong)) shu ;*".