Perhaps you should try some spelling variations:
hanh loai » thanh hoai, thanh loan, phan loai
van cham » van chat, van tham, va cham
anh hanh » anh thanh, xanh hanh, anh anh
su sach » so sach, vu sach
ca viet » va viet, hoa viet, san viet
co viet » so viet, o viet, hoc viet
y nang » ky nang, ly nang, v nang
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: su sach y nang x hoi. hieu ((van cham) or (cao chat)) duc anh hanh loai ((ca viet) OR (co viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang x hoi. hieu ((van cham) OR (cao chat)) duc anh hanh loai ((ca viet) OR (co viet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang x hoi. hieu ((van cham) or (cao chat)) duc anh hanh loai ((ca viet) OR (co viet))".
• Adding a wildcard symbol may retrieve word variants: su sach y nang x hoi. hieu ((van cham) or (cao chat)) duc anh hanh loai ((ca viet) OR (co viet))*.