Perhaps you should try some spelling variations:
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
cau tinh » chau tinh, cuu tinh, cac tinh
dac tinh » may tinh, ha tinh, ban tinh
tinh cua » trinh cua, sinh cua, tinh chat
cua tong » cua cong, cua dong, cua nong
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
toan ban » van ban

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

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