Perhaps you should try some spelling variations:
soft byung » song byung
when soft » when so, when some
doing un » doing und, doing our, doing von
long bin » dong bin, long bond, song bing
bin when » win when, can when, bin we
yang jun » yang jui, pang jun, yang jin
un long » upon long, van long
yang yi » yang jui
yang xi » yang jui

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: doing un long bin when soft byung ((yang jun) OR (((yang di) OR (((yang yi) OR (yang xi)))))) ;~.
• Adding a wildcard symbol may retrieve word variants: doing un long bin when soft byung ((yang jun) or (((yang di) or (((yang yi) or (yang xi)))))) ;*.