Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » thong cong, hang cong, nhung don
toc chieu » toc thieu, doc hieu, hoc thieu
hanh tang » hanh trang, anh tang, hanh mang
dung cong » dung trong
manh toan » thanh toan, tinh toan
tang va » trang va, tang van, thang va

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc chieu sach - hanh tang va ((nhung cong) or (dung cong)) ((manh toan) OR (anh tuan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc chieu sach - hanh tang va ((nhung cong) OR (dung cong)) ((manh toan) OR (anh tuan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc chieu sach - hanh tang va ((nhung cong) or (dung cong)) ((manh toan) OR (anh tuan)) cau".
• Adding a wildcard symbol may retrieve word variants: toc chieu sach - hanh tang va ((nhung cong) or (dung cong)) ((manh toan) OR (anh tuan)) cau*.