Perhaps you should try some spelling variations:
tuong khoa » luong khoa, duong khoa, dung khoa
khoa nganh » khoi nganh, hoc nganh
nganh khoa » nganh hoa, nganh khong, doanh khoa
cuu tuong » cuu thuong, cuu tong, cuu phuong
van thanh » ban thanh, van tuan
sach hoc » cach hoc, sach hoi, mach hoc
khoa hoc » hoa hoc
te sach » toc sach
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: te sach hoc tap, nghien cuu tuong khoa nganh khoa hoc ma hoi ((ca nhan) or (van thanh)) van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach hoc tap, nghien cuu tuong khoa nganh khoa hoc ma hoi ((ca nhan) OR (van thanh)) van.
• Adding a wildcard symbol may retrieve word variants: te sach hoc tap, nghien cuu tuong khoa nganh khoa hoc ma hoi ((ca nhan) or (van thanh)) van*.