Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
tieu xanh » tieu danh, chieu xanh, dieu hanh
hanh mang » nhanh mang, nhanh lang, thanh hang
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » toan cao, toan ban, toan tap
va lang » va nang, hoa lang

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 mang) or (hanh trang)) ((va lang) or (hoa dan)) cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - ((hanh mang) OR (hanh trang)) ((va lang) OR (hoa dan)) cong tac toan cau.
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - ((hanh mang) or (hanh trang)) ((va lang) or (hoa dan)) cong tac toan cau*.