Perhaps you should try some spelling variations:
hieu nghe » hiem ngheo, nhiem nghe, hieu he
lieu nghe » lieu nhe, lieu nghien, lieu nha
dan thanh » dang thanh, danh thanh, ban thanh
nam thuc » nam thuoc, am thuc, nam thu
thuc dan » thuc hanh, hoc dan, thuc vat
thanh ve » hanh ve, thanh va, thanh vien
nang ma » tang ma, sang ma, nang cao
vu sac » vu sach, vu san, va sac
sac ky » cac ky, sai ky
ma hoi » mai hoi, xa hoi, ma hoa
ve cua » le cua, de cua, te cua
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sac ky nang ma hoi. ((hieu nghe) or (lieu nghe)) nam thuc dan thanh ve cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sac ky nang ma hoi. ((hieu nghe) OR (lieu nghe)) nam thuc dan thanh ve cua tu.
• Adding a wildcard symbol may retrieve word variants: vu sac ky nang ma hoi. ((hieu nghe) or (lieu nghe)) nam thuc dan thanh ve cua tu*.