Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
hanh doi » thanh doi, hanh noi, hang doi
va cham » va chat, va tham
duoc va » nuoc va, duc va, duoc ma
doi cua » dai cua, hoi cua
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
uoc va » nuoc va, quoc va, luoc va
loc va » hoc 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: thu sach y nang x hoi. lieu va cham ((((uoc va) OR (duoc va))) or (loc va)) hanh doi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y nang x hoi. lieu va cham ((((uoc va) OR (duoc va))) OR (loc va)) hanh doi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach y nang x hoi. lieu va cham ((((uoc va) OR (duoc va))) or (loc va)) hanh doi cua tre".
• Adding a wildcard symbol may retrieve word variants: thu sach y nang x hoi. lieu va cham ((((uoc va) OR (duoc va))) or (loc va)) hanh doi cua tre*.