Perhaps you should try some spelling variations:
thieu manh » hieu manh, tien manh, trieu minh
hanh tranh » canh tranh, hanh trinh, lanh tranh
hanh trang » thanh trung, canh tranh, hanh trinh
hoc thieu » toc thieu, hoc hien
dung cong » dung trong
cua dung » cua dang, cua dong, qua dung
dan than » dan chan, ban than, van than
van toan » van tuan, van tan, van thanh

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