Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
van thong » van thuong, van phong, va thong
anh nang » ganh nang, anh bang, anh dang
nang van » dang van, tang van, lang van
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
tran tan » tran tuan, tran van, tran thanh

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