Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
trung gian » truong giang, truong giao, trong giang
toc chieu » toc thieu, doc hieu, hoc thieu
gian lang » gian dan
lang cong » dang cong, bang cong, hang cong
cong dan » cong san, cong tan, huong dan
phan lap » phan dau
lan van » luan van, lang van, tan van

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: toc chieu sach - thanh trung gian lang cong dan ((phan lap) or (lan van))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc chieu sach - thanh trung gian lang cong dan ((phan lap) OR (lan van))*.