Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
cong hoa » dong hoa, dong hoc, hang hoa
toan hoc » toan khoa, van hoc, hoa hoc
khoa hoc » hoa hoc
van nhan » van phan, van thanh, danh nhan
hoa tap » khoa tap, hoc tap, hoa tan
hai van » thai van, ha van, hai tan
nhan va » nhan tai, nhan dan, nhan tao
mo hoc » mon hoc, co hoc
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: thu cong hoa tap, nghien cuu ((mo hoc) or (toan hoc)) nganh khoa hoc xa hai van nhan va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu cong hoa tap, nghien cuu ((mo hoc) OR (toan hoc)) nganh khoa hoc xa hai van nhan va.
• Adding a wildcard symbol may retrieve word variants: thu cong hoa tap, nghien cuu ((mo hoc) or (toan hoc)) nganh khoa hoc xa hai van nhan va*.