Perhaps you should try some spelling variations:
cost data » test data
wang yang » wang yan, wang liang, wang yanling
cyn young » lynn young, yun young, c young
young yun » kyoung yun, young eun, young young
dann bin » dong bin
pay your » day your, way your, say you
data cyn » data can, data car, data chi
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 (((wang yang) or (dann bin)))) ((pay your) OR (way you)) cost data cyn young yun ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wai yan) OR (((wang yang) OR (dann bin)))) ((pay your) OR (way you)) cost data cyn young yun ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wai yan) or (((wang yang) or (dann bin)))) ((pay your) OR (way you)) cost data cyn young yun ;".
• Adding a wildcard symbol may retrieve word variants: ((wai yan) or (((wang yang) or (dann bin)))) ((pay your) OR (way you)) cost data cyn young yun ;*.