Perhaps you should try some spelling variations:
thieu tang » nhieu tang, thieu khang, thieu quang
hanh tranh » canh tranh, hanh trinh, hanh trang
hoc thieu » toc thieu, hoc hien
tranh va » tranh van, trang va, trinh va
va thong » va thuong, va phuong, he thong
dan toan » van toan, manh toan, xuan toan
dan than » dan chan, ban than, van than

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 tang - hanh tranh va thong thong ((dan toan) or (dan than)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tang - hanh tranh va thong thong ((dan toan) OR (dan than)) ban.
• Adding a wildcard symbol may retrieve word variants: hoc thieu tang - hanh tranh va thong thong ((dan toan) or (dan than)) ban*.