Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
sach nuoc » sach duoc, cac nuoc, bach tuoc
luc nganh » luc ngan, chuc nganh, luat nganh
sach hoi » sach doi, sach moi, cach thoi
cuu dong » cuu cong, cuu tong, cuu long
dong luc » nang luc
khoa hoc » hoa hoc
nhan dan » phan dau, gian dan, nhan tai
hoc xa » hoc ma
hoi ca » hoi cua, hoi cac, hoi cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach nuoc) or (sach hoi)) tap, nghien cuu dong luc nganh khoa hoc xa hoi ca nhan dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach nuoc) OR (sach hoi)) tap, nghien cuu dong luc nganh khoa hoc xa hoi ca nhan dan.
• Adding a wildcard symbol may retrieve word variants: tu ((sach nuoc) or (sach hoi)) tap, nghien cuu dong luc nganh khoa hoc xa hoi ca nhan dan*.