Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
hieu van » hieu va, thien van, lieu va
hanh vai » hanh vi, hanh va, hanh tai
cua tre » cua te, cua triet, dua tren
va hanh » van hanh, va thanh, va danh
cau tuc » cau truc, cau tu, cau luc
van cau » van dau, van hau, van chat
cuu tre » cau tren, cau treo
y nang » ky nang, ly nang, may nang
tuc va » thuc va, truc va, tuc xa
v nang » va nang, vu nang, van nang

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) OR (v nang)) x ho. hieu van cau tuc va hanh vai ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ((y nang) OR (v nang)) x ho. hieu van cau tuc va hanh vai ((cua tre) OR (cuu tre))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ((y nang) OR (v nang)) x ho. hieu van cau tuc va hanh vai ((cua tre) or (cuu tre))*".