Perhaps you should try some spelling variations:
vat thanh » dat thanh, gat thanh, tat thanh
hieu nghe » lieu nghe, hiem ngheo, nhiem nghe
nghe nam » nghe lam, nghiep nam, nghe nano
nam thuc » nam thuoc, am thuc, nam thu
ky lang » ky nang, ky dang, tay lang
ky tang » ky nang, ky dang, kho tang
vu sac » vu sach, vu san, va sac
vi cua » vai cua
di cua » dai cua, doi cua, de cua

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 lang) OR (ky tang)) xa hoi. hieu nghe nam thuc vat thanh ((vi cua) or (di cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sac ((ky lang) OR (ky tang)) xa hoi. hieu nghe nam thuc vat thanh ((vi cua) OR (di cua)) te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sac ((ky lang) OR (ky tang)) xa hoi. hieu nghe nam thuc vat thanh ((vi cua) or (di cua)) te*".