Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
cong thanh » dong thanh, truong thanh
cua nhung » va nhung
canh ban » can ban, canh dan, canh van
cong tan » cong tac, cong san, cong ty
toan tap » toan ban
ban cua » ban quan

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu sach - canh ban cua nhung ((((cong thanh) OR (cong trinh))) or (cong tan)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - canh ban cua nhung ((((cong thanh) OR (cong trinh))) OR (cong tan)) toan tap*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - canh ban cua nhung ((((cong thanh) OR (cong trinh))) or (cong tan)) toan tap*".