Perhaps you should try some spelling variations:
sach tranh » canh tranh
hanh trinh » canh tranh, hanh chinh
ho trieu » mot trieu, 25 trieu, 30 trieu
cua bang » chua bang, cua ban, cua dang
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
chan tap » han tap, phan tap, chan ta

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho trieu tinh - ((sach tranh) or (hanh trinh)) cua bang ((cong dan) OR (cong san)) chan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho trieu tinh - ((sach tranh) OR (hanh trinh)) cua bang ((cong dan) OR (cong san)) chan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho trieu tinh - ((sach tranh) or (hanh trinh)) cua bang ((cong dan) OR (cong san)) chan tap".
• Adding a wildcard symbol may retrieve word variants: ho trieu tinh - ((sach tranh) or (hanh trinh)) cua bang ((cong dan) OR (cong san)) chan tap*.