Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
thong cong » trong cong, tong cong, thong thong
ho chieu » theo chieu, hoc thieu, doi chieu
va thong » va thuong, va phuong, he thong
cong tan » cong tac, cong san, cong thanh
toan ban » van ban
tung va » trung va, tuong va, dung va

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 - thanh tung va thong cong tan ((toan cao) OR (((toan tap) OR (toan ban))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - thanh tung va thong cong tan ((toan cao) OR (((toan tap) OR (toan ban))))".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh tung va thong cong tan ((toan cao) OR (((toan tap) OR (toan ban))))*.