Perhaps you should try some spelling variations:
kyoung eun » kyoung yun, hyoung gun
cost data » test data
yang yang » wang yang, wang yan
young eun » young men
dann bin » dong bin
you cost » your cost, you post, you cross
data can » ata can, data case
wai yan » wang yan, wei yang
way you » why you

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wai yan) or (((yang yang) or (dann bin)))) way you cost data can ((kyoung eun) or (young eun)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wai yan) OR (((yang yang) OR (dann bin)))) way you cost data can ((kyoung eun) OR (young eun)) ;.
• Adding a wildcard symbol may retrieve word variants: ((wai yan) or (((yang yang) or (dann bin)))) way you cost data can ((kyoung eun) or (young eun)) ;*.