Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
canh trinh » canh tranh, hanh trinh, canh tinh
nhung cong » dung cong, thong cong, nhung don
lieu tinh » trieu tinh, diep tinh, bien tinh
trinh vai » trinh van, trinh tai, trinh vat
hang cong » dang cong, hang nong, bang cong
tac chan » tac chuan, tac can, tac chon
chan tu » phan tu, han tu, chon tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((lieu tinh) or (chieu sach)) - canh trinh vai ((nhung cong) or (hang cong)) tac chan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((lieu tinh) OR (chieu sach)) - canh trinh vai ((nhung cong) OR (hang cong)) tac chan tu.
• Adding a wildcard symbol may retrieve word variants: ho ((lieu tinh) or (chieu sach)) - canh trinh vai ((nhung cong) or (hang cong)) tac chan tu*.