Perhaps you should try some spelling variations:
thanh trong » thanh trung, tranh trong, hanh trong
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
doi chieu » doc hieu, doi chi, ho chieu
trong dam » trong lam, trong nam, trong cac
dam nhung » cam nhung, nam nhung, dam khung
cong san » cong tac
khan cap » khan ap, than cap, khoan cam
han ap » han tap, khan ap, dan ap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sach - thanh trong dam nhung cong san ((tri cua) or (((khan cap) or (han ap))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - thanh trong dam nhung cong san ((tri cua) OR (((khan cap) OR (han ap)))).
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - thanh trong dam nhung cong san ((tri cua) or (((khan cap) or (han ap))))*.