Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
thanh tung » thanh cong
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
dan toan » van toan, dan than, manh toan
ban than » ban thanh, van thanh, ban hang
tung va » trung va, tuong va, dung va

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 - thanh tung va nhung cong ((dan toan) or (((ban than) or (dan ca)))) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - thanh tung va nhung cong ((dan toan) OR (((ban than) OR (dan ca)))) cao.
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - thanh tung va nhung cong ((dan toan) or (((ban than) or (dan ca)))) cao*.