Perhaps you should try some spelling variations:
bang thanh » ban thanh, dang thanh, tang thanh
hieu xanh » chieu xanh, hieu manh, hieu nganh
hang dong » hang nong, hang cong, hanh dong
dong bang » dong san
thanh lap » thanh san, phan lap, thanh hai
doc hieu » toc thieu, hoc thieu, hoc hien
cong yu » cong tu, cong su, cong vu
cong cu » chung cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu xanh - thanh ((cong yu) or (cong cu)) hang dong bang thanh lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - thanh ((cong yu) OR (cong cu)) hang dong bang thanh lap.
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - thanh ((cong yu) or (cong cu)) hang dong bang thanh lap*.