Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
va danh » va dinh, va dan, va hanh
truc va » thuc va, thuc vat, trung va
va cham » va chat, va tham
y nang » ky nang, ly nang, v nang
va dai » va dao, vi dai, va dau
vi cua » vai cua
di cua » dai cua, doi cua, de cua
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: thuoc sach y nang x hoi. hieu ((va dai) or (va cham)) truc va danh ((vi cua) or (di cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach y nang x hoi. hieu ((va dai) OR (va cham)) truc va danh ((vi cua) OR (di cua)) te.
• Adding a wildcard symbol may retrieve word variants: thuoc sach y nang x hoi. hieu ((va dai) or (va cham)) truc va danh ((vi cua) or (di cua)) te*.