Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
hieu va » hieu qua
hanh va » hang va
cua tre » cua te, cuu tre, cua triet
do duc » dao duc, do duy
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 x hoi. ((hieu va) OR (lieu va)) do duc va ((hanh va) or (hanh vi)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ty nang x hoi. ((hieu va) OR (lieu va)) do duc va ((hanh va) OR (hanh vi)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ty nang x hoi. ((hieu va) OR (lieu va)) do duc va ((hanh va) or (hanh vi)) cua tre".
• Adding a wildcard symbol may retrieve word variants: thuat sach ty nang x hoi. ((hieu va) OR (lieu va)) do duc va ((hanh va) or (hanh vi)) cua tre*.