Perhaps you should try some spelling variations:
thien van » thi van
van tham » van thanh, van tuan, van chat
tham tuc » tham thuc, thai tuc, nham thuc
su sach » so sach, vu sach
co sach » bo sach, cuon sach, hoc sach
va hanh » van hanh, va thanh, va danh
lai cua » dai cua, lai chau, thai cua
hai cua » thai cua, dai cua, hoi cua
tuc va » thuc va, truc va, tuc xa
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: ((su sach) or (co sach)) ky nang x hoi. thien van tham tuc va hanh ((lai cua) OR (hai cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (co sach)) ky nang x hoi. thien van tham tuc va hanh ((lai cua) OR (hai cua)) triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (co sach)) ky nang x hoi. thien van tham tuc va hanh ((lai cua) OR (hai cua)) triet*".