Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
quan nhung » qua nhung, cua nhung, quang hung
luan chung » luan chinh
tieu sach » chieu sach, dien sach, te sach
cong dan » cong san, cong tan, huong dan
dan chan » dan gian, dan ca, van chat
chan man » chan nan, than man, chan doan

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu sach - hanh trinh ((quan nhung) or (luan chung)) cong dan chan man~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - hanh trinh ((quan nhung) OR (luan chung)) cong dan chan man.
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - hanh trinh ((quan nhung) or (luan chung)) cong dan chan man*.