Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
yang yang » wang yan
wong sau » wong sam, wong siu, wong shiu
8 train » 8 strain, _ train, 7 train
4 train » _ train, 7 train, a train
a wide » a wider, _ wide, a wise
a wie » a wise, a wife, a win

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 yang ((8 train) OR (4 train)) ((a wie) or (a wide)) wong sau ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang yang ((8 train) OR (4 train)) ((a wie) OR (a wide)) wong sau ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yang yang ((8 train) OR (4 train)) ((a wie) or (a wide)) wong sau ;*".