Perhaps you should try some spelling variations:
chuc nganh » chuc nang, hoc nganh, cac nganh
nganh khoa » nganh hoa, nganh khong, doanh khoa
cach thoi » cac thoi, cach thuc, cach noi
long chuc » cong chuc, long cuc, long phuc
sach hoi » sach doi, sach moi, hoach hoi
cuu long » cuu cong, cuu tong, cuu nang
khoa hoc » hoa hoc
nhan tai » hang tai, van tai, toan tai
va nhan » van nhan, ca nhan, va 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: so ((sach hoi) OR (cach thoi)) tai, nghien cuu long chuc nganh khoa hoc xa hoi va nhan tai~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so ((sach hoi) OR (cach thoi)) tai, nghien cuu long chuc nganh khoa hoc xa hoi va nhan tai".
• Adding a wildcard symbol may retrieve word variants: so ((sach hoi) OR (cach thoi)) tai, nghien cuu long chuc nganh khoa hoc xa hoi va nhan tai*.