Perhaps you should try some spelling variations:
hieu xanh » chieu xanh, hieu manh, hieu nganh
hanh tang » hanh trang, anh tang, hanh mang
doc hieu » toc thieu, hoc thieu, hoc hien
tang cua » mang cua, hang cua, tang luan
ban cong » bang cong, van cong, phan cong
cong anh » cong danh, dong anh, hong anh
tuan cau » toan cau, quan cau, tuan cu
tuan tu » tuan thu, tran tu, toan tu

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 tang cua ban cong anh ((tuan cau) or (tuan tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - hanh tang cua ban cong anh ((tuan cau) OR (tuan tu)).
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - hanh tang cua ban cong anh ((tuan cau) or (tuan tu))*.