Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
cua triet » su triet, va triet
hieu van » hieu va, thien van, lieu va
van cham » van chat, van tham, va cham
cham tuc » nham thuc, pham thuc, tham thuc
va thanh » gia thanh, ban thanh, va tinh
thanh vi » hanh vi, thanh va, thanh ve
cua viet » ca viet, hoa viet, cua vat
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: ((tu cac) or (thuoc sach)) ky nang x hoi. hieu van cham tuc va thanh vi ((cua triet) OR (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cac) OR (thuoc sach)) ky nang x hoi. hieu van cham tuc va thanh vi ((cua triet) OR (cua viet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu cac) or (thuoc sach)) ky nang x hoi. hieu van cham tuc va thanh vi ((cua triet) OR (cua viet))".
• Adding a wildcard symbol may retrieve word variants: ((tu cac) or (thuoc sach)) ky nang x hoi. hieu van cham tuc va thanh vi ((cua triet) OR (cua viet))*.