Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
tieu xanh » tieu danh, chieu xanh, dieu hanh
luan hang » luan nang, luan han, luan hung
luan san » luan van, luan hoan, luan phan
cong dan » cong san, cong tan, huong dan
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: theo tieu xanh - hanh trang ((luan hang) or (luan san)) cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - hanh trang ((luan hang) OR (luan san)) cong dan toan cau.
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - hanh trang ((luan hang) or (luan san)) cong dan toan cau*.