Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
hieu ve » hieu va, hieu van
va kinh » va tinh, qua kinh
lai cua » dai cua, hai cua, thai cua
y nang » ky nang, ly nang, v nang
ve nam » he nam, va nam, le nam
nam tu » nam thu, nam thuc
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. hieu ve nam tu va kinh ((lai cua) OR (lai chau)) viet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach y nang x hoi. hieu ve nam tu va kinh ((lai cua) OR (lai chau)) viet".
• Adding a wildcard symbol may retrieve word variants: thu sach y nang x hoi. hieu ve nam tu va kinh ((lai cua) OR (lai chau)) viet*.