Perhaps you should try some spelling variations:
cac thuc » cach thuc, cac thu, can thuc
thuc dan » thuc hanh, hoc dan, thuc vat
dan hanh » dang hanh, dan khanh, dan thanh
hanh tai » thanh tai, hang tai, han tai
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
cua tre » cua te, cua triet, dua tren
cuu tre » cau tren, cau treo
su cac » tu cac, su cao, su can
ma hoi » mai hoi, xa hoi, ma hoa
ve cac » va cac, vien cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: su cac ky nang ma hoi. hieu ve cac thuc dan hanh tai ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su cac ky nang ma hoi. hieu ve cac thuc dan hanh tai ((cua tre) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: su cac ky nang ma hoi. hieu ve cac thuc dan hanh tai ((cua tre) or (cuu tre))*.