Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
danh thai » anh thai, dang thai, dinh thai
thai cua » than cua, tai cuc, tri cua
van chat » cao chat
va danh » va dinh, va dan, va hanh
tu sach » thu sach, te sach, tu cach
tang xa » trang xa, tang ma, lang xa
ky tang » ky nang, ky dang, kho tang
su sach » so sach, vu sach
va tham » van tham, va cham, va thanh
tuc va » thuc va, truc va, tuc xa

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 (su sach)) ky tang xa hoi. hieu ((va tham) or (van chat)) tuc va danh thai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ky tang xa hoi. hieu ((va tham) OR (van chat)) tuc va danh thai cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (su sach)) ky tang xa hoi. hieu ((va tham) or (van chat)) tuc va danh thai cua triet*".