Perhaps you should try some spelling variations:
nghien thu » nghiem thuc, nghiep thuc, nghe thu
nganh khoa » nganh hoa, nganh khong, doanh khoa
ngoai tap » ngoai tac, ngoai tai, ngoai tru
anh ngoai » doanh ngoai, benh ngoai, hang ngoai
hoa nganh » hoc nganh, khoi nganh, hoa doanh
cong hoa » dong hoa, dong hoc, hang hoa
van nhan » van phan, van thanh, danh nhan
khoa hoc » hoa hoc
hai van » thai van, ha van, hai tan
nhan va » nhan tai, nhan dan, nhan tao
xa hai » xa thai, xua hai, xa hoi
hoc xa » hoc ma
tu anh » tu hanh, tu manh, thu anh

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu anh ngoai tap, ((nghien thu) OR (nghien cuu)) cong hoa nganh khoa hoc xa hai van nhan va~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu anh ngoai tap, ((nghien thu) OR (nghien cuu)) cong hoa nganh khoa hoc xa hai van nhan va".
• Adding a wildcard symbol may retrieve word variants: tu anh ngoai tap, ((nghien thu) OR (nghien cuu)) cong hoa nganh khoa hoc xa hai van nhan va*.