Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
hanh thong » anh thong, hanh trong, hang thong
va duong » van duong, va tuong, va huong
cong tan » cong tac, cong san, cong thanh
tran ban » tranh ban, tran van, toan ban
va dung » van dung, vat dung, va ung

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 - hanh thong ((va dung) OR (va duong)) cong tan tran ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - hanh thong ((va dung) OR (va duong)) cong tan tran ban".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - hanh thong ((va dung) OR (va duong)) cong tan tran ban*.