Perhaps you should try some spelling variations:
nganh khong » nganh cong, nhanh chong, nganh nong
nghien thu » nghiem thuc, nghiep thuc, nghien cuu
khong hoc » khung hoc, thong hoc, khong thuoc
hoa nganh » hoc nganh, khoi nganh, hoa doanh
dan thuc » dan toc, am thuc
phan dau » phan tu, hang dau
cong hoa » dong hoa, dong hoc, hang hoa
thuc tap » tuc tap, thuc thai, thuc vat
hai van » thai van, ha van, hai tan
nhan va » nhan tai, nhan dan, nhan tao
hoc xa » hoc ma
xa hai » xa thai, xua hai, xa hoi
tu dan » tuc dan, tu ban, cu dan

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu dan thuc tap, nghien thu cong hoa nganh khong hoc xa hai van ((nhan va) or (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu dan thuc tap, nghien thu cong hoa nganh khong hoc xa hai van ((nhan va) OR (phan dau)).
• Adding a wildcard symbol may retrieve word variants: tu dan thuc tap, nghien thu cong hoa nganh khong hoc xa hai van ((nhan va) or (phan dau))*.