Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
hieu xanh » chieu xanh, hieu manh, hieu nganh
cua thong » cua thuong, cua tong, suat thong
cua khong » hua khong, cua phuong, cua thuong
doc hieu » toc thieu, hoc thieu, hoc hien
cong dan » cong san, cong tan, huong dan
phan dau » phan tu
hang dau » hang va, hang tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu xanh - hanh trang ((cua thong) OR (cua khong)) cong dan ((phan dau) or (hang dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - hanh trang ((cua thong) OR (cua khong)) cong dan ((phan dau) OR (hang dau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu xanh - hanh trang ((cua thong) OR (cua khong)) cong dan ((phan dau) or (hang dau))".
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - hanh trang ((cua thong) OR (cua khong)) cong dan ((phan dau) or (hang dau))*.