Perhaps you should try some spelling variations:
cong thuong » hang thuong
theo chieu » theo tieu, theo chu, thi chieu
cong huong » cong luong, cong hung, dong huong
nang luat » nang suat, tang luat, nganh luat
ho chieu » hoc thieu, doi chieu, mot chieu
anh nang » ganh nang, anh bang, anh dang
van toan » van tuan, van tan, van thanh
toan cao » toan ban, toan tap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chieu) OR (ho chieu)) tinh - anh nang luat ((cong huong) or (cong thuong)) van toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (ho chieu)) tinh - anh nang luat ((cong huong) OR (cong thuong)) van toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) OR (ho chieu)) tinh - anh nang luat ((cong huong) or (cong thuong)) van toan cao".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) OR (ho chieu)) tinh - anh nang luat ((cong huong) or (cong thuong)) van toan cao*.