Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
so sach » bo sach, co sach, hoc sach
so sanh » do sanh
hieu ve » hieu va, hieu van
ve pham » vi pham, v pham, ve phan
va hanh » van hanh, va thanh, va danh
cua tu » cua tuc, cua su, cua cu
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((so sach) or (so sanh)) ky nang x hoi. hieu ve pham duc va hanh vai ((cua te) OR (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (so sanh)) ky nang x hoi. hieu ve pham duc va hanh vai ((cua te) OR (cua tu))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so sach) or (so sanh)) ky nang x hoi. hieu ve pham duc va hanh vai ((cua te) OR (cua tu))*".