Perhaps you should try some spelling variations:
david dang » david ian, david mant
yang zili » yang dali, yang li
yan wang » yuan wang, yang yang, qian wang
yang iii » klang iii, zwang iii, yang di
david ng » david g, david n, david a
form im » form i, form ii, reform im
hadi » had

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((yan wang) or (wang yan)) ((yang iii) OR (yang zili)) form im ((david dang) or (david ng)) hadi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yan wang) OR (wang yan)) ((yang iii) OR (yang zili)) form im ((david dang) OR (david ng)) hadi ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yan wang) or (wang yan)) ((yang iii) OR (yang zili)) form im ((david dang) or (david ng)) hadi ;*".