Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
thien van » thi van
chat truc » cau truc, chat xuc
vanh dai » van dai, vanh tai, lanh dao
van chat » cao chat
truc va » thuc va, thuc vat, trung va
danh di » danh du, xanh di, danh dien
cua tre » cua te, cuu tre, cua triet
v nang » va nang, vu nang, van nang
y nang » ky nang, ly nang, may nang
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) or (v nang)) x hoi. thien van chat truc va ((vanh dai) or (danh di)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ((y nang) OR (v nang)) x hoi. thien van chat truc va ((vanh dai) OR (danh di)) cua tre.
• Adding a wildcard symbol may retrieve word variants: thuat sach ((y nang) or (v nang)) x hoi. thien van chat truc va ((vanh dai) or (danh di)) cua tre*.