Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
toc sach » hoc sach, doc sach, thuoc sach
dinh dai » dinh dat, sinh dai, dinh dao
ly nang » ky nang, ly hang, ly vang
va cham » va chat
va tham » van tham, va thanh, va thuat
truc va » thuc va, thuc vat, trung va
va dinh » van dinh, va kinh, va tinh
y nang » ky nang, v nang, may nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach ((y nang) or (ly nang)) xa hoi. lieu ((va cham) OR (va tham)) truc va dinh dai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ((y nang) OR (ly nang)) xa hoi. lieu ((va cham) OR (va tham)) truc va dinh dai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ((y nang) or (ly nang)) xa hoi. lieu ((va cham) OR (va tham)) truc va dinh dai cua triet".
• Adding a wildcard symbol may retrieve word variants: toc sach ((y nang) or (ly nang)) xa hoi. lieu ((va cham) OR (va tham)) truc va dinh dai cua triet*.