Perhaps you should try some spelling variations:
trinh hoat » trinh hoa, trinh hoan, trinh luat
hanh trinh » canh tranh, hanh chinh
thuong dan » huong dan, thuong han, thuong dam
hoc thieu » toc thieu, hoc hien
hoat hang » hoan hoang, hoat dong, hoa lang
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc thieu) or (theo tieu)) xanh - hanh trinh hoat hang thuong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (theo tieu)) xanh - hanh trinh hoat hang thuong dan toan cau*.