Perhaps you should try some spelling variations:
green planet » green place, green plants, green paper
wing green » being green, using green, going green
planet how » plans how, plan how, planet law
chan ming » kian ming, chan eng, chan kang
chan fong » chew fong, chan eng, chan kang
hung seo » hung ho
hong » long

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: wing green planet how best ((chan ming) OR (chan fong)) ((hung seo) OR (hong seo)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wing green planet how best ((chan ming) OR (chan fong)) ((hung seo) or (hong seo)) ;~".
• Adding a wildcard symbol may retrieve word variants: wing green planet how best ((chan ming) OR (chan fong)) ((hung seo) or (hong seo)) ;*.