Perhaps you should try some spelling variations:
cach thuc » anh thuc, cac thu
cua triet » cua viet, su triet, va triet
thuc gia » thuc giai, thue gia, thuc dia
thanh vi » hanh vi, thanh va, thanh ve
so sach » so sanh, bo sach, co sach
nang ma » tang ma, sang ma, nang cao
hieu va » lieu va, hieu qua
va cach » va cac
cua tre » cuu tre, dua tren, cua thep
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa
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: so sach y nang ma hoi. hieu va cach thuc gia thanh vi ((((cua tre) or (cua te))) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach y nang ma hoi. hieu va cach thuc gia thanh vi ((((cua tre) OR (cua te))) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: so sach y nang ma hoi. hieu va cach thuc gia thanh vi ((((cua tre) or (cua te))) or (cua triet))*.