Perhaps you should try some spelling variations:
thieu manh » hieu manh, tien manh, trieu minh
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
doanh cua » doanh luan
trung cua » truong cua, trung tuan, trung cap
san toan » van toan, manh toan, xuan toan
dan toan » van toan, dan than, manh toan

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