Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
thieu xanh » chieu xanh, thien anh, thien danh
thanh toan » thanh hoa, thanh san, tinh toan
hieu manh » chieu xanh, hieu nganh, dieu hanh
hanh tang » hanh trang, anh tang, hanh mang
bang cong » dang cong, bang song, hang cong
tang cua » mang cua, hang cua, tang luan
cua bang » chua bang, cua ban, cua dang
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: hoc ((thieu xanh) or (hieu manh)) - hanh tang cua bang cong thanh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (hieu manh)) - hanh tang cua bang cong thanh toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (hieu manh)) - hanh tang cua bang cong thanh toan ban*.