Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
bien tinh » bi tinh, yen tinh, diep tinh
cua nhung » va nhung
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cau » toan cao, toan ban, toan tap
anh ban » anh bang, anh bai, anh van
ban cua » ban quan

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu sach) or (bien tinh)) - anh ban cua nhung cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (bien tinh)) - anh ban cua nhung cong tan toan cau.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (bien tinh)) - anh ban cua nhung cong tan toan cau*.