Perhaps you should try some spelling variations:
nhanh thanh » phan thanh, nhanh tinh
dung cong » dung trong
chu sach » cau sach, chieu sach, chuc hach
thu sach » tu sach, thuat sach, thuoc sach
thanh su » thanh sau, thanh tu, hanh su
cong tan » cong tac, cong san, cong thanh
van cau » van hau, van chat, toan cau
van dau » van dao, 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: theo ((chu sach) or (thu sach)) - nhanh thanh su dung cong tan ((van cau) OR (van dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu sach) OR (thu sach)) - nhanh thanh su dung cong tan ((van cau) OR (van dau))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu sach) or (thu sach)) - nhanh thanh su dung cong tan ((van cau) OR (van dau))*".