Perhaps you should try some spelling variations:
thieu tach » thien hach, chiet tach, chieu sach
thanh dong » thanh duong, thanh cong, hanh dong
hoc thieu » toc thieu, hoc hien
san nhung » sang nhung, ban nhung, sao nhung
cong tran » cong tuan, cong toan, cong tren
dong san » cong san, dong bang, dong von
cong tan » cong tac, cong san, cong thanh
phan lap » phan dau

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 dong san nhung ((cong tran) or (cong tan)) phan lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tach - thanh dong san nhung ((cong tran) OR (cong tan)) phan lap.
• Adding a wildcard symbol may retrieve word variants: hoc thieu tach - thanh dong san nhung ((cong tran) or (cong tan)) phan lap*.