Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
canh doanh » hanh doanh, chinh doanh, doanh doanh
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
doanh va » doan va, doanh tai, doanh cua
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 - canh doanh va nhung cong ((dan than) or (anh tuan)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - canh doanh va nhung cong ((dan than) OR (anh tuan)) tap.
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - canh doanh va nhung cong ((dan than) or (anh tuan)) tap*.