Perhaps you should try some spelling variations:
tien thanh » tien thinh, tran thanh, den thanh
hanh trang » thanh trung, hanh trinh, minh trang
dan phuong » doan phuong, van phuong, lan phuong
phuong dan » phuong danh, phuong doan, huong dan
tien manh » tien anh, tieng anh, tran manh
dan toan » van toan, dan than, manh toan
toan ban » van ban
cua dan » cua dang, cua ban, ca dan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((tien manh) OR (tien thanh)) - ((hanh trang) or (canh tranh)) cua dan phuong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((tien manh) OR (tien thanh)) - ((hanh trang) OR (canh tranh)) cua dan phuong dan toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((tien manh) OR (tien thanh)) - ((hanh trang) or (canh tranh)) cua dan phuong dan toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((tien manh) OR (tien thanh)) - ((hanh trang) or (canh tranh)) cua dan phuong dan toan ban*.