Perhaps you should try some spelling variations:
chieu sach » chiet tach, chieu sang, chieu xanh
hanh trang » thanh trung, canh tranh, hanh trinh
dung cong » dung trong
anh tang » anh bang, anh dang, anh nang
vat dung » van dung, va dung, viet dung
cong sat » cong suat, cong san, cong hat
sat phan » sat nhan, vat phan, xuat phan
phan dau » phan tu, hang dau

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) or (chinh sach)) - ((hanh trang) or (anh tang)) vat dung cong sat phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chinh sach)) - ((hanh trang) OR (anh tang)) vat dung cong sat phan dau.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (chinh sach)) - ((hanh trang) or (anh tang)) vat dung cong sat phan dau*.