Perhaps you should try some spelling variations:
cam thuc » nam thuc, cam thu, can thuc
va thanh » gia thanh, ban thanh, va tinh
thanh va » thanh van, hanh va, thanh ha
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
cua tre » cuu tre, cua triet, dua tren
tu cao » cu cao, tu cac, vu cao
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: tu cao ky nang ma hoi. hieu ve ((cam thuc) or (am thuc)) va thanh va ((cua tre) OR (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cao ky nang ma hoi. hieu ve ((cam thuc) OR (am thuc)) va thanh va ((cua tre) OR (cua te))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cao ky nang ma hoi. hieu ve ((cam thuc) or (am thuc)) va thanh va ((cua tre) OR (cua te))*".