Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
hang cong » dang cong, hang nong, bang cong
chinh va » chinh ta, chinh tai, tinh va
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan cao » toan ban, toan tap
hanh va » hang va, hanh vi

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 ((chinh va) OR (hanh va)) hang cong san toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - hanh ((chinh va) OR (hanh va)) hang cong san toan cao".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - hanh ((chinh va) OR (hanh va)) hang cong san toan cao*.