Perhaps you should try some spelling variations:
class life » class line, class lines, class lives
klang amp » king amp, klang als
dong sign » among sign, dong bin
wing yan » wang yan, wing ian, wing tan
life can » life care, life case, life a
yang yi » yang xi, yang jui
sin » sind, skin, sein

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

• Performing a fuzzy search may retrieve terms with similar spellings: wing yan ((klang amp) or (((yang yi) or (yang di)))) class life can ((dong sign) OR (dong sin)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wing yan ((klang amp) OR (((yang yi) OR (yang di)))) class life can ((dong sign) OR (dong sin)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wing yan ((klang amp) or (((yang yi) or (yang di)))) class life can ((dong sign) OR (dong sin)) ;*".