Perhaps you should try some spelling variations:
yang guang » yan guan, yang liang
yang wang » yan wang, yang liang, wang yang
yang yang » wang yang, wang yan
minh hong » minh cong, min hong, linh hoang
sin ying » li ying, fan ying, ran ying
jin ying » li ying
hong yu » wong yue

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang ((((yang wang) OR (yang yang))) or (yang guang)) hui ((sin ying) or (jin ying)) minh hong yu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((((yang wang) OR (yang yang))) OR (yang guang)) hui ((sin ying) OR (jin ying)) minh hong yu ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((((yang wang) OR (yang yang))) or (yang guang)) hui ((sin ying) or (jin ying)) minh hong yu ;".
• Adding a wildcard symbol may retrieve word variants: wang ((((yang wang) OR (yang yang))) or (yang guang)) hui ((sin ying) or (jin ying)) minh hong yu ;*.