Perhaps you should try some spelling variations:
phan thuc » nhan thuc, phap thuc, pham thuc
nang tai » tang tai, sang tai, nang cao
tai khoi » tai khoa, mai khoi, tao khoi
vat hang » van hang, dat hang, va hang
hang tai » hang va, dung tai
va triet » va thiet, va trien, ve triet
te sach » toc sach
hieu ke » hieu kem, chieu ke, hieu ky
ke phan » ve phan, kenh phan, ke thang
y nang » ky nang, ly nang, v nang
cua te » cua tu

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 y nang tai khoi. hieu ke phan thuc vat hang tai ((cua te) or (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang tai khoi. hieu ke phan thuc vat hang tai ((cua te) OR (va triet)).
• Adding a wildcard symbol may retrieve word variants: te sach y nang tai khoi. hieu ke phan thuc vat hang tai ((cua te) or (va triet))*.