Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
trinh vat » trinh van, trinh luat, sinh vat
ho chieu » theo chieu, hoc thieu, doi chieu
trinh vi » trinh va, trinh ve, trinh viet
dan than » ban than, van than, dan toan
dan chan » dan gian, dan ca, van chat

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - hanh ((trinh vat) or (trinh vi)) nhung cong ((dan than) or (dan chan)) cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh ((trinh vat) OR (trinh vi)) nhung cong ((dan than) OR (dan chan)) cap.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh ((trinh vat) or (trinh vi)) nhung cong ((dan than) or (dan chan)) cap*.