Perhaps you should try some spelling variations:
khang thuoc » khong thuoc, dang thuoc, hanh thuoc
moi nganh » khoi nganh, hoc nganh, moi ngay
cach thuc » anh thuc, cac thu
hoc nhanh » hoc nganh, hoc phan
thuc tap » tuc tap, thuc thai, thuc vat
thuoc ma » hoc ma, duoc ma
tu cach » tu cac
van van » van ban, tan van, san van
hoi van » hoi va, hoi dan, hai van
van tai » von tai, van tuan
huu mot » cuu mot, huy mot, hieu mot
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cach thuc tap, nhiem huu mot ((moi nganh) or (hoc nhanh)) khang thuoc ma hoi van van tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cach thuc tap, nhiem huu mot ((moi nganh) OR (hoc nhanh)) khang thuoc ma hoi van van tai.
• Adding a wildcard symbol may retrieve word variants: tu cach thuc tap, nhiem huu mot ((moi nganh) or (hoc nhanh)) khang thuoc ma hoi van van tai*.