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, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
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) OR (thong 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) OR (thong cong)) ((dan than) OR (anh tuan)) tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu tinh - canh doanh va ((nhung cong) OR (thong cong)) ((dan than) or (anh tuan)) tap".
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - canh doanh va ((nhung cong) OR (thong cong)) ((dan than) or (anh tuan)) tap*.