Perhaps you should try some spelling variations:
hieu xanh » chieu xanh, hieu nganh, dieu hanh
hieu manh » chieu xanh, hieu nganh, dieu hanh
hanh tang » hanh trang, anh tang, hanh mang
dang cong » dung cong
tang cua » mang cua, hang cua, tang luan
cua dang » cua cong, cua ban
cong tac » cong ty
nhan sau » nhan su, nhanh cau, thanh sau
nhan san » nhan dan, nhan van, nha san

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) OR (hieu manh)) - hanh tang cua dang cong tac ((nhan sau) or (nhan san))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu xanh) OR (hieu manh)) - hanh tang cua dang cong tac ((nhan sau) OR (nhan san)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((hieu xanh) OR (hieu manh)) - hanh tang cua dang cong tac ((nhan sau) or (nhan san))".
• Adding a wildcard symbol may retrieve word variants: doc ((hieu xanh) OR (hieu manh)) - hanh tang cua dang cong tac ((nhan sau) or (nhan san))*.