Perhaps you should try some spelling variations:
khong cong » thong cong, chong cong, khong con
chiet tach » chieu sach
khong cang » thong cong, hong bang, khong dung
hanh tang » hanh trang, anh tang, hanh mang
ho chiet » ho chieu, ho thiet, hoc thiet
tang cua » mang cua, hang cua, tang luan
dan than » dan chan, ban than, van than

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chiet tach - hanh tang cua ((khong cong) OR (khong cang)) ((xuan toan) or (dan than)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chiet tach - hanh tang cua ((khong cong) OR (khong cang)) ((xuan toan) OR (dan than)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chiet tach - hanh tang cua ((khong cong) OR (khong cang)) ((xuan toan) or (dan than)) cao".
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - hanh tang cua ((khong cong) OR (khong cang)) ((xuan toan) or (dan than)) cao*.