Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
su triet » su viet, su tien, ve triet
cham tuc » nham thuc, pham thuc, tham thuc
hoc sach » hoc sinh, hoc cac, hoc anh
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
va cham » va chat, va tham
han tai » hang tai, nhan tai, van tai
tu sach » thu sach, su sach, te sach
tuc va » thuc va, truc va, tuc xa
va han » va phan, van han, va hanh

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (hoc sach)) ky lang xa hoi. lieu va cham tuc va han tai ((cua triet) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (hoc sach)) ky lang xa hoi. lieu va cham tuc va han tai ((cua triet) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (hoc sach)) ky lang xa hoi. lieu va cham tuc va han tai ((cua triet) or (su triet))*.