Perhaps you should try some spelling variations:
thinh khong » tinh khong, trinh khong, thi khong
chieu sach » chinh sach, chiet tach, chieu sang
toc chieu » toc thieu, doc hieu, hoc thieu
gian lang » gian dan
lang cong » dang cong, bang cong, hang cong
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: toc chieu sach - thinh khong gian lang cong tan ((phan lap) or (pham van))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc chieu sach - thinh khong gian lang cong tan ((phan lap) OR (pham van))*.