Perhaps you should try some spelling variations:
yang dewan » yang dean, wang dewen
huang yang » huang ying, huang chang, huang jing
wang yang » wang yan, wang liang, wang yanling
dewan kuo » dewan tun
yang yang » wang yan
hong hai » shang hai, zhong tai, dang hai
hong 7 » hong w, hong a
hong g » hong ng, hong w, hong a

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 dewan kuo ((huang yang) or (yang yang)) jun ((hong hai) or (((hong 7) or (hong g)))) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang dewan kuo ((huang yang) OR (yang yang)) jun ((hong hai) OR (((hong 7) OR (hong g)))) ;.
• Adding a wildcard symbol may retrieve word variants: wang yang dewan kuo ((huang yang) or (yang yang)) jun ((hong hai) or (((hong 7) or (hong g)))) ;*.