Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
chieu xanh » chieu sach, chieu sang, chieu tinh
cong thanh » dong thanh, cong trinh, cong tan
thanh toan » thanh hoa, thanh san, tinh toan
hanh tang » hanh trang, hanh mang, hanh tung
bang cong » dang cong, bang song, hang cong
anh tang » anh bang, anh dang, anh nang
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: theo ((hieu nganh) or (chieu xanh)) - ((hanh tang) OR (anh tang)) cua bang cong thanh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((hieu nganh) OR (chieu xanh)) - ((hanh tang) OR (anh tang)) cua bang cong thanh toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((hieu nganh) or (chieu xanh)) - ((hanh tang) OR (anh tang)) cua bang cong thanh toan ban".
• Adding a wildcard symbol may retrieve word variants: theo ((hieu nganh) or (chieu xanh)) - ((hanh tang) OR (anh tang)) cua bang cong thanh toan ban*.