Perhaps you should try some spelling variations:
wang yidan » wang yan
main dana » main data, mann dana, main canal
hong than » hong tan, long thanh, hong hai
yang jui » yang judy, yang di, yang xi
yang yi » yang di, yang xi
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.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((main dana) OR (wang yidan)) ((yang jui) OR (yang yi)) irene ((a wie) OR (a wide)) hong than ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((main dana) or (wang yidan)) ((yang jui) or (yang yi)) irene ((a wie) OR (a wide)) hong than ;~".
• Adding a wildcard symbol may retrieve word variants: ((main dana) or (wang yidan)) ((yang jui) or (yang yi)) irene ((a wie) OR (a wide)) hong than ;*.