Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trong vang » trong van, trong dang, trong tang
thi chieu » thi chien, thi hieu, theo chieu
vang toan » van toan, dang toan, quang toan
trinh va » trinh van, trinh vat, trinh ve
toan cao » toan ban, toan tap
va dung » van dung, va duong, vat dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((toc thieu) or (thi chieu)) xanh - hanh trinh va dung trong vang toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc thieu) OR (thi chieu)) xanh - hanh trinh va dung trong vang toan cao*.