Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu sach » chieu sach, thien hach, hieu cach
tuan trong » thuan trong, quan trong, toan trong
tran trong » gian trong, quan trong, tran hong
hoc thieu » toc thieu, hoc hien
cong tan » cong tac, cong san, cong thanh
tan khan » tan khang, tan nhan, toan khoan
khan dam » thanh dam, chang dam, khanh nam

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 sach - thanh trung ((tuan trong) or (tran trong)) cong tan khan dam~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - thanh trung ((tuan trong) OR (tran trong)) cong tan khan dam.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - thanh trung ((tuan trong) or (tran trong)) cong tan khan dam*.