Perhaps you should try some spelling variations:
tieu sach » chieu sach, dien sach, te sach
dung cong » dung trong
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 ban » van ban
ban cua » ban quan
hang ca » hang va, nang cao, hang tai

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - hanh ((((tang cua) OR (ban cua))) OR (hang ca)) dung cong tan toan ban~.
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - hanh ((((tang cua) or (ban cua))) or (hang ca)) dung cong tan toan ban*.