Perhaps you should try some spelling variations:
cong nguong » cong nguon, cong luong, cong huong
cong thuong » hang thuong
thi chieu » thi chien, thi hieu, theo chieu
hanh tang » hanh trang, anh tang, hanh mang
tang luat » tang luan, nang suat, hang luan
manh toan » thanh toan, anh tuan, tinh toan
theo chu » theo chieu, cho chu, chao chu
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: ((thi chieu) or (theo chu)) xanh - hanh tang luat ((cong nguong) OR (cong thuong)) manh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thi chieu) OR (theo chu)) xanh - hanh tang luat ((cong nguong) OR (cong thuong)) manh toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thi chieu) or (theo chu)) xanh - hanh tang luat ((cong nguong) OR (cong thuong)) manh toan ban".
• Adding a wildcard symbol may retrieve word variants: ((thi chieu) or (theo chu)) xanh - hanh tang luat ((cong nguong) OR (cong thuong)) manh toan ban*.