Perhaps you should try some spelling variations:
pham duy » pham duc
van dinh » van minh, van dich, va dinh
va triet » va thiet, va trien, ve triet
tu sach » thu sach, su sach, tu cach
te sach » toc sach
nang co » nang cao, nang doc, nang noi
hieu ve » hieu va, hieu van
ve pham » vi pham, v pham, ve phan
duy van » duy vat, dung van
dinh cu » dinh cuu, dinh chuc, dinh chau
y nang » ky nang, ly nang, v nang
co hoi » co hoc, co loi
cu va » cuu va, tu va, su va

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 (te sach)) y nang co hoi. hieu ve pham duy van dinh cu va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) y nang co hoi. hieu ve pham duy van dinh cu va triet.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) y nang co hoi. hieu ve pham duy van dinh cu va triet*.