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
manh toan » thanh toan, tinh toan
ho chieu » theo chieu, hoc thieu, doi chieu
dan toan » van toan, dan than, xuan toan
tung he » dung he, tung ho, tang he

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 he thong cong ((dan toan) or (((manh toan) OR (anh tuan)))) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh tung he thong cong ((dan toan) OR (((manh toan) OR (anh tuan)))) cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - thanh tung he thong cong ((dan toan) or (((manh toan) OR (anh tuan)))) cao*".