Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thuoc sach » hoc sach, nuoc sach, thuat sach
nhung cong » dung cong, thong cong, hang cong
cua nhung » va nhung
thu sach » tu sach, thuat sach, thu hoach
anh tang » anh bang, anh dang, anh nang
tang cua » mang cua, hang cua, tang luan
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cau » toan cao, toan ban, toan tap

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 (((thu sach) OR (thuoc sach)))) - anh tang cua nhung cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (((thu sach) OR (thuoc sach)))) - anh tang cua nhung cong tan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sach) or (((thu sach) OR (thuoc sach)))) - anh tang cua nhung cong tan toan cau".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (((thu sach) OR (thuoc sach)))) - anh tang cua nhung cong tan toan cau*.