Perhaps you should try some spelling variations:
nganh thong » nganh khong, nganh cong, nhanh chong
luc nganh » luc ngan, chuc nganh, luat nganh
thong hoa » thong khoa, thong ha, thong hoc
tinh luc » tinh duc, dinh luc, tinh khuc
nhan dan » phan dau, gian dan, nhan tai
tu sach » thu sach, su sach, te sach
so sach » so sanh, bo sach, co sach
hoi tap » hoi dap, hoc tap, hoi tai
va nhan » van nhan, ca nhan, va phan
hoa ma » khoa ma, hoa may, hoa mau
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: ((tu sach) or (so sach)) hoi tap, nghien cuu tinh luc nganh thong hoa ma hoi va nhan dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (so sach)) hoi tap, nghien cuu tinh luc nganh thong hoa ma hoi va nhan dan.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (so sach)) hoi tap, nghien cuu tinh luc nganh thong hoa ma hoi va nhan dan*.