Perhaps you should try some spelling variations:
van dinh » van minh, van dich, xuan dinh
viet cua » viec cua, viet ca, viet qua
te sach » toc sach
ty nang » ty xang, ty hang, ly nang
hieu ve » hieu va, hieu van
cac duc » cac du, cao duc, cac dac
va dinh » va kinh, va tinh, vu dinh
cua tre » cua te, cuu tre, cua triet
ma hoi » mai hoi, xa hoi, ma hoa
ve cac » va cac, vien cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ((ty nang) or (ky nang)) ma hoi. hieu ve cac duc ((va dinh) OR (van dinh)) viet cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ty nang) OR (ky nang)) ma hoi. hieu ve cac duc ((va dinh) OR (van dinh)) viet cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ty nang) or (ky nang)) ma hoi. hieu ve cac duc ((va dinh) OR (van dinh)) viet cua tre*".