Perhaps you should try some spelling variations:
cong thuong » hang thuong
chieu sach » chinh sach, chiet tach, chieu sang
thuong dan » huong dan, thuong han, thuong dam
hieu manh » chieu xanh, hieu nganh, dieu hanh
minh cua » manh cua, sinh cua, tinh cua
dan khan » dan khanh, dan chan, dan than
khan cap » khan ap, than cap, khoan cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((hieu manh) or (chieu sach)) - hoang minh cua cong thuong dan khan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu manh) OR (chieu sach)) - hoang minh cua cong thuong dan khan cap.
• Adding a wildcard symbol may retrieve word variants: ho ((hieu manh) or (chieu sach)) - hoang minh cua cong thuong dan khan cap*.