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
tranh cua » doanh cua, manh cua
cua nhung » va nhung
dan toan » van toan, dan than, manh toan
van chat » cao chat

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 - canh tranh cua nhung cong ((dan toan) or (van chat)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu manh - canh tranh cua nhung cong ((dan toan) OR (van chat)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu manh - canh tranh cua nhung cong ((dan toan) or (van chat)) cau*.