Perhaps you should try some spelling variations:
hieu xanh » chieu xanh, hieu manh, hieu nganh
hanh sinh » hanh tinh, hanh dinh, hinh sinh
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 van » cong vang, cong san, song van
van toan » van tuan, van tan, van thanh
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 - hanh sinh ((cua thong) OR (cua khong)) cong van toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu xanh - hanh sinh ((cua thong) OR (cua khong)) cong van toan ban".
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - hanh sinh ((cua thong) OR (cua khong)) cong van toan ban*.