Perhaps you should try some spelling variations:
thanh luc » thanh luu, than luc, nhan luc
van thanh » ban thanh, van tuan
thu sach » tu sach, thuat sach, thuoc sach
hanh lai » hanh lam, hanh tai, thanh lap
hieu van » hieu va, thien van, lieu va
hang tai » hang va, dung tai
lai cua » dai cua, hai cua, lai chau
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
nang ma » tang ma, sang ma, nang cao
sach 2 » sach y
luc va » duc va, tuc va, loc va

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 2 ((nang ma) or (((sang tao) OR (hang tai)))) hoi. hieu van thanh luc va hanh lai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach 2 ((nang ma) OR (((sang tao) OR (hang tai)))) hoi. hieu van thanh luc va hanh lai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach 2 ((nang ma) or (((sang tao) OR (hang tai)))) hoi. hieu van thanh luc va hanh lai cua tre".
• Adding a wildcard symbol may retrieve word variants: thu sach 2 ((nang ma) or (((sang tao) OR (hang tai)))) hoi. hieu van thanh luc va hanh lai cua tre*.