Perhaps you should try some spelling variations:
ngan tuong » nhan tuong, ban tuong, luan tuong
tuong hoc » truong hoc, tuong ho, duong hoc
toc sach » hoc sach, doc sach, thuoc sach
cuu long » cuu cong, cuu tong, cuu nang
long luc » dong luc, long cuc, long lich
luc ngan » luc nganh, luc nhan, luat ngan
su sach » so sach, vu sach
hoi tap » hoi dap, hoc tap, hoi tai
va phan » van phan, va phat, va phap
phan va » phan van, nhan va, han va
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: ((toc sach) or (su sach)) hoi tap, nghien cuu long luc ngan tuong hoc xa hoi va phan va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc sach) OR (su sach)) hoi tap, nghien cuu long luc ngan tuong hoc xa hoi va phan va.
• Adding a wildcard symbol may retrieve word variants: ((toc sach) or (su sach)) hoi tap, nghien cuu long luc ngan tuong hoc xa hoi va phan va*.