Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, nhieu tang
tranh quan » tranh quang, trinh quan, tranh luan
quan trong » gian trong
hieu lang » hieu quang, nhieu tang, hieu van
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu sach) or (((chieu sang) OR (hieu lang)))) - canh tranh quan trong cong san toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (((chieu sang) OR (hieu lang)))) - canh tranh quan trong cong san toan ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) or (((chieu sang) OR (hieu lang)))) - canh tranh quan trong cong san toan ban*".