Perhaps you should try some spelling variations:
nhanh mang » nhanh lang, nhanh quang, nhanh thang
tieu xanh » tieu danh, chieu xanh, dieu hanh
hanh mang » hanh trang, nhanh lang, thanh hang
dung cong » dung trong
cong dan » cong san, cong tan, huong dan
than cau » phan cau, than cap, thanh chau
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 mang) or (nhanh mang)) su dung cong dan ((than cau) OR (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - ((hanh mang) OR (nhanh mang)) su dung cong dan ((than cau) OR (toan cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - ((hanh mang) or (nhanh mang)) su dung cong dan ((than cau) OR (toan cau))".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - ((hanh mang) or (nhanh mang)) su dung cong dan ((than cau) OR (toan cau))*.