Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
van dinh » van minh, van dich, xuan dinh
va triet » va thiet, va trien, ve triet
va dinh » va kinh, va tinh, vu dinh
y nang » ky nang, ly nang, v nang
ve cam » ve cham, va cam, ve cai
ve cac » va cac, vien cac
x hoi » xa hoi, o hoi, x ho
cu va » cuu va, tu va, su va

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach y nang x hoi. hieu ((ve cam) or (ve cac)) duc ((va dinh) OR (van dinh)) cu va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach y nang x hoi. hieu ((ve cam) OR (ve cac)) duc ((va dinh) OR (van dinh)) cu va triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach y nang x hoi. hieu ((ve cam) or (ve cac)) duc ((va dinh) OR (van dinh)) cu va triet".
• Adding a wildcard symbol may retrieve word variants: thuat sach y nang x hoi. hieu ((ve cam) or (ve cac)) duc ((va dinh) OR (van dinh)) cu va triet*.