Perhaps you should try some spelling variations:
nghien thu » nghiem thuc, nghiep thuc, nghien cuu
hoa nganh » hoc nganh, khoi nganh, hoa thanh
hoa doanh » toan doanh, hoa dan
khoa hoc » hoa hoc
van nhan » van phan, van thanh, danh nhan
cach noi » cach thoi, hanh noi, anh noi
tu cach » tu cac
hai van » thai van, ha van, hai tan
nhan va » nhan tai, nhan dan, nhan tao
noi tap » toi tap, ngoai tap, noi tiep
hoc xa » hoc ma
xa hai » xa thai, xua hai, xa hoi

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 noi tap, nghien thu cong ((hoa nganh) or (hoa doanh)) khoa hoc xa hai van nhan va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cach noi tap, nghien thu cong ((hoa nganh) OR (hoa doanh)) khoa hoc xa hai van nhan va.
• Adding a wildcard symbol may retrieve word variants: tu cach noi tap, nghien thu cong ((hoa nganh) or (hoa doanh)) khoa hoc xa hai van nhan va*.