Perhaps you should try some spelling variations:
phap thuc » phap thu, phap hoc, phap tu
tham thuc » nham thuc, pham thuc, tam thuc
thanh va » thanh van, hanh va, thanh ha
thanh vi » hanh vi, thanh ve, nhanh vi
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
tu cai » tu cac, tu can, tu bai
ma hoi » mai hoi, xa hoi, ma hoa
cai ky » cao ky, cac ky, cam ky
cua te » cua tu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu cai ky nang ma hoi. hieu ve ((phap thuc) OR (tham thuc)) gia ((thanh vi) OR (thanh va)) cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cai ky nang ma hoi. hieu ve ((phap thuc) or (tham thuc)) gia ((thanh vi) OR (thanh va)) cua te~".
• Adding a wildcard symbol may retrieve word variants: tu cai ky nang ma hoi. hieu ve ((phap thuc) or (tham thuc)) gia ((thanh vi) OR (thanh va)) cua te*.