Perhaps you should try some spelling variations:
thieu manh » hieu manh, tien manh, trieu minh
hanh mang » nhanh mang, hanh trang, nhanh lang
cua dang » cua cong, cua ban
qua dung » quang dung, su dung, qua song
cong san » cong tac
san toan » van toan, dan toan, manh toan
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: toc thieu manh - hanh mang ((cua dang) or (qua dung)) cong san toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu manh - hanh mang ((cua dang) OR (qua dung)) cong san toan ban.
• Adding a wildcard symbol may retrieve word variants: toc thieu manh - hanh mang ((cua dang) or (qua dung)) cong san toan ban*.