Perhaps you should try some spelling variations:
quan duong » tuan duong, quan dong, quan vuong
hanh doanh » hang doanh, chinh doanh, doanh doanh
qua duong » qua dung, qua dong, tuan duong
chi xanh » chi anh, chi danh, chi hanh
dan than » dan chan, ban than, van than
than cao » toan cao, thai cao, than cap
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi xanh - hanh doanh ((qua duong) or (quan duong)) huong dan than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi xanh - hanh doanh ((qua duong) OR (quan duong)) huong dan than cao.
• Adding a wildcard symbol may retrieve word variants: doi chi xanh - hanh doanh ((qua duong) or (quan duong)) huong dan than cao*.