Perhaps you should try some spelling variations:
dinh chau » minh chau, tinh chat, dinh chi
va triet » va thiet, va trien, ve triet
tu sach » thu sach, su sach, te sach
va dinh » van dinh, va kinh, va tinh
chau va » chau van, chat va, chau a
y nang » ky nang, ly nang, v nang
ve cam » ve cham, ve cac, ve cai
va cam » va cham, va cac, va cao
x hoi » xa hoi, o hoi, 5 hoi

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 y nang ((x hoi) or (x ho)). hieu ((ve cam) or (va cam)) duc va dinh chau va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang ((x hoi) OR (x ho)). hieu ((ve cam) OR (va cam)) duc va dinh chau va triet.
• Adding a wildcard symbol may retrieve word variants: tu sach y nang ((x hoi) or (x ho)). hieu ((ve cam) or (va cam)) duc va dinh chau va triet*.