Perhaps you should try some spelling variations:
tdanh trung » thanh trung, thanh tung, dang trung
danh trung » dang trung, dinh trung, manh trung
dung cong » dung trong
theo chu » theo chieu, cho chu, chao chu
chu sach » cau sach, thu sach, chieu sach
cua dung » cua dang, cua dong, qua dung
cong tac » cong ty
tran cao » tran chau, trang cho, tranh cac
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 chu sach - ((danh trung) or (tdanh trung)) cua dung cong tac ((tran cao) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu sach - ((danh trung) OR (tdanh trung)) cua dung cong tac ((tran cao) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: theo chu sach - ((danh trung) or (tdanh trung)) cua dung cong tac ((tran cao) or (toan cao))*.