Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
hanh dai » hanh tai, hanh dao, vanh dai
va cham » va chat, va tham
cua tre » cua te, cua triet, dua tren
cuu tre » cau tren, cau treo
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang
loc va » luc 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 v nang x hoi. lieu va cham ((hoc va) or (loc va)) hanh dai ((cua tre) OR (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach v nang x hoi. lieu va cham ((hoc va) OR (loc va)) hanh dai ((cua tre) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach v nang x hoi. lieu va cham ((hoc va) or (loc va)) hanh dai ((cua tre) OR (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: thuat sach v nang x hoi. lieu va cham ((hoc va) or (loc va)) hanh dai ((cua tre) OR (cuu tre))*.