Perhaps you should try some spelling variations:
hieu xanh » chieu xanh, hieu manh, hieu nganh
doanh cua » doanh luan
cong cong » cong dong, trong cong, dung cong
doc hieu » toc thieu, hoc thieu, hoc hien
manh cua » ban cua
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan ban » van ban

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 - canh ((manh cua) OR (doanh cua)) cong cong dan toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu xanh - canh ((manh cua) OR (doanh cua)) cong cong dan toan ban*".