Perhaps you should try some spelling variations:
hieu nghe » lieu nghe, hiem ngheo, nhiem nghe
thanh dai » thanh hai, thanh tai, thanh dat
nghe nam » nghe lam, nghiep nam, nghe nano
thuc dan » thuc hanh, hoc dan
nang xa » lang xa, nang ma, mang xa
vu cac » va cac, tu cac, ve cac
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: vu cac ky ((nang xa) or (nang x)) hoi. hieu nghe nam ((thuc dan) OR (thuc vat)) thanh dai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu cac ky ((nang xa) OR (nang x)) hoi. hieu nghe nam ((thuc dan) OR (thuc vat)) thanh dai cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu cac ky ((nang xa) or (nang x)) hoi. hieu nghe nam ((thuc dan) OR (thuc vat)) thanh dai cua te*".