Perhaps you should try some spelling variations:
dung cong » dung trong
theo chu » theo chieu, cho chu, chao chu
chu sach » cau sach, thu sach, chieu sach
manh cua » doanh cua, ban cua
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cao » toan ban, toan tap
hang ca » hang va, nang cao, hang tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu sach - hanh ((hang ca) or (manh cua)) dung cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu sach - hanh ((hang ca) OR (manh cua)) dung cong tac toan cao.
• Adding a wildcard symbol may retrieve word variants: theo chu sach - hanh ((hang ca) or (manh cua)) dung cong tac toan cao*.