Perhaps you should try some spelling variations:
hieu xanh » chieu xanh, hieu manh, hieu nganh
hanh hang » thanh hang, hang hang, hanh han
cong dang » cong dong, cong dung, cong danh
thanh cau » thanh chau, thanh mau, nhanh cau
doc hieu » toc thieu, hoc thieu, hoc hien
va trong » va truong, va thong, va tuong
cong dan » cong san, cong tan, huong dan

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 hang va trong ((cong dang) OR (cong dan)) thanh cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu xanh - hanh hang va trong ((cong dang) OR (cong dan)) thanh cau*".