Perhaps you should try some spelling variations:
tuong theo » luong theo, tuong thiet, tuong ho
theo nganh » tao nganh, thuong nganh
nganh khoa » nganh hoa, nganh khong, doanh khoa
cuu tuong » cuu thuong, cuu tong, cuu phuong
thu sach » tu sach, thuat sach, thuoc sach
sach hoc » cach hoc, sach hoi, mach hoc
khoa hoc » hoa hoc
va phan » van phan, va phap, hoa phan
hoc xa » hoc ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach hoc tap, nghien cuu tuong theo nganh khoa hoc xa hoi ((va phan) OR (va phat)) van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach hoc tap, nghien cuu tuong theo nganh khoa hoc xa hoi ((va phan) OR (va phat)) van".
• Adding a wildcard symbol may retrieve word variants: thu sach hoc tap, nghien cuu tuong theo nganh khoa hoc xa hoi ((va phan) OR (va phat)) van*.