Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
hanh tranh » canh tranh, hanh trinh, hanh trang
hoc thieu » toc thieu, hoc hien
tranh cua » doanh cua, manh cua
bang cong » dang cong, bang song, hang cong
van thanh » ban thanh, van tuan
cua bang » chua bang, cua ban, cua dang
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 tinh - hanh tranh cua bang cong ((dan than) or (van thanh)) man~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - hanh tranh cua bang cong ((dan than) OR (van thanh)) man.
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - hanh tranh cua bang cong ((dan than) or (van thanh)) man*.