Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
lam chau » lai chau, lam chu, lam chat
hanh lam » thanh lap, hanh kem, hanh va
chau tre » chay tren, chau tho, cho tre
ly hang » ly quang
van bac » van ban, van hac, dan bac
van bao » van ban, van dao
va hanh » van hanh, va thanh, va danh
ly nang » ky nang, ly vang, ly quang
xuc va » duc va, tuc 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 ((ly nang) or (ly hang)) x hoi. hieu ((van bac) OR (van bao)) xuc va hanh lam chau tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((ly nang) OR (ly hang)) x hoi. hieu ((van bac) OR (van bao)) xuc va hanh lam chau tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ((ly nang) or (ly hang)) x hoi. hieu ((van bac) OR (van bao)) xuc va hanh lam chau tre".
• Adding a wildcard symbol may retrieve word variants: thu sach ((ly nang) or (ly hang)) x hoi. hieu ((van bac) OR (van bao)) xuc va hanh lam chau tre*.