Perhaps you should try some spelling variations:
yang guang » yan guan, yang liang
yang yang » wang yang, wang yan
gan guan » yan guan, quan guan, fan guon
shi wong » shi rong, shin dong, shi ding
wong sau » wong sam, wong siu, wong shiu
hua ren » hua chen
yan shi » yan zhi, yun shik

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (lang OR wing) ((((yang guang) OR (yang yang))) OR (gan guan)) hua ren yan shi wong sau ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(lang or wing) ((((yang guang) OR (yang yang))) or (gan guan)) hua ren yan shi wong sau ;~".
• Adding a wildcard symbol may retrieve word variants: (lang or wing) ((((yang guang) OR (yang yang))) or (gan guan)) hua ren yan shi wong sau ;*.