Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
chieu sach » chinh sach, chiet tach, chieu sang
thanh dung » thanh duong, thanh tung, thanh hung
dung hieu » dong hieu, dung tieu, trung hieu
hieu tong » hieu tuong, hieu truong, bieu tuong
cuong tap » luong tap, cong tac, luong tai
cong tap » cong tac, cong tan, tong tap
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 tinh) or (chieu sach)) - thanh dung hieu tong ((cong tap) OR (cuong tap)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu tinh) OR (chieu sach)) - thanh dung hieu tong ((cong tap) OR (cuong tap)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu tinh) or (chieu sach)) - thanh dung hieu tong ((cong tap) OR (cuong tap)) toan ban".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu tinh) or (chieu sach)) - thanh dung hieu tong ((cong tap) OR (cuong tap)) toan ban*.