Perhaps you should try some spelling variations:
duong anh » duong manh, duong xanh, duong vanh
chi xanh » chi anh, chi danh, chi hanh
van hang » van khang, van hoang, van thang
anh toan » manh toan, anh tuan, thanh toan
toan cao » toan ban, toan tap
doi chi » doi khi
va nang » van nang, da nang, cam nang

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 - canh tranh ((van hang) or (va nang)) duong anh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi xanh - canh tranh ((van hang) OR (va nang)) duong anh toan cao.
• Adding a wildcard symbol may retrieve word variants: doi chi xanh - canh tranh ((van hang) or (va nang)) duong anh toan cao*.