Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
cua triet » cua viet, su triet, va triet
hanh ve » hanh vi, hanh va, hanh kem
cua tre » cua te, cuu tre, dua tren
y nang » ky nang, ly nang, v nang
qua ca » qua cac, qua cua, qua cai
xuc va » tuc va, luc va, xac va
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 y nang x hoi. hieu qua ca ((xuc va) OR (duc va)) hanh ve ((cua tre) OR (cua triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach y nang x hoi. hieu qua ca ((xuc va) OR (duc va)) hanh ve ((cua tre) OR (cua triet))".
• Adding a wildcard symbol may retrieve word variants: thuat sach y nang x hoi. hieu qua ca ((xuc va) OR (duc va)) hanh ve ((cua tre) OR (cua triet))*.