Perhaps you should try some spelling variations:
thieu khong » thieu khang, thi khong, dieu khong
chieu khong » chien chong, chu khong, chieu duong
thanh mang » thanh hang, hanh mang, nhanh mang
luong cong » dung cong, trong cong, cong cong
cua luong » cu luong, cua huong, chat luong
mang cua » manh cua, dung cua, ban cua
dan toan » van toan, dan than, manh toan
ban than » ban thanh, van thanh, ban hang

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 khong) OR (chieu khong)) - thanh mang cua luong cong ((dan toan) or (ban than)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu khong) OR (chieu khong)) - thanh mang cua luong cong ((dan toan) OR (ban than)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu khong) OR (chieu khong)) - thanh mang cua luong cong ((dan toan) or (ban than)) cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu khong) OR (chieu khong)) - thanh mang cua luong cong ((dan toan) or (ban than)) cau*.