Perhaps you should try some spelling variations:
thieu tach » thien hach, chiet tach, chieu sach
thanh tung » thanh cong
nhung cong » dung cong, thong cong, hang cong
thanh toan » thanh hoa, thanh san, tinh toan
hoc thieu » toc thieu, hoc hien
tung cua » trung cua, tuong cua, dung cua
dan toan » van toan, dan than, manh toan

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