Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
ty nang » ty xang, ty hang, ly nang
ve cham » va cham, ve chat, ve chim
vu cham » va cham, vu kham, tu cham
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
tuc va » thuc va, truc va, tuc xa
vi cua » vai cua, di 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: thuat sach ((ty nang) OR (ky nang)) x hoi. hieu ((ve cham) or (vu cham)) tuc va hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ((ty nang) OR (ky nang)) x hoi. hieu ((ve cham) OR (vu cham)) tuc va hanh vi cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ((ty nang) OR (ky nang)) x hoi. hieu ((ve cham) or (vu cham)) tuc va hanh vi cua tre*".