Perhaps you should try some spelling variations:
thanh trung » thanh tung
cua phuong » cuu phuong, luan phuong, xuan phuong
cuc phuong » cac phuong, cuu phuong, chuc thuong
hien sach » kien sach, thien hach, chieu sach
dien sach » dien anh
cong tac » cong ty
tac than » tac thanh, tam than, tac nhan
than ban » thanh ban, toan ban, than man

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: hoc ((hien sach) OR (dien sach)) - thanh trung ((cua phuong) OR (cuc phuong)) cong tac than ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien sach) OR (dien sach)) - thanh trung ((cua phuong) or (cuc phuong)) cong tac than ban~".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien sach) OR (dien sach)) - thanh trung ((cua phuong) or (cuc phuong)) cong tac than ban*.