Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
chieu tinh » trieu tinh, lieu tinh, chau tinh
hang cong » dang cong, hang nong, bang cong
hach toan » thanh toan, manh toan
anh tang » anh bang, anh dang, anh nang
tang cua » mang cua, hang cua, tang luan
cua hang » cua dang, cua nhung, cua cong
tac toan » tap toan, tam toan, tich toan

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) or (chieu tinh)) - anh tang cua hang cong ((tac toan) OR (hach toan)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (chieu tinh)) - anh tang cua hang cong ((tac toan) OR (hach toan)) ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sach) or (chieu tinh)) - anh tang cua hang cong ((tac toan) OR (hach toan)) ban".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (chieu tinh)) - anh tang cua hang cong ((tac toan) OR (hach toan)) ban*.