Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhieu tang » chieu sang, hieu lang, nhiet nang
hanh mang » nhanh mang, hanh trang, nhanh lang
dung cong » dung trong
manh toan » thanh toan, anh tuan, tinh toan
mang cua » manh cua, dung cua, ban cua
cua dung » cua dang, cua dong, qua dung
ban than » ban thanh, van thanh, ban hang

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu sach) or (nhieu tang)) - hanh mang cua dung cong ((manh toan) or (ban than)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sach) OR (nhieu tang)) - hanh mang cua dung cong ((manh toan) OR (ban than)) ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sach) or (nhieu tang)) - hanh mang cua dung cong ((manh toan) or (ban than)) ban*.