Perhaps you should try some spelling variations:
nganh khong » nganh cong, nhanh chong, nganh nong
khong hoc » khung hoc, thong hoc, khong thuoc
soc nganh » hoc nganh, hoc nhanh, cac nganh
sach doi » sach hoi, sach dao, sach bai
van nhan » van phan, van thanh, danh nhan
long soc » lon soc, luong suc, cong so
cuu long » cuu cong, cuu tong, cuu nang
sach moi » sach hoi, bach mai, sach bai
nhan dan » phan dau, gian dan, nhan tai
hai van » thai van, ha van, hai tan
hoc xa » hoc ma
xa hai » xa thai, xua hai, xa hoi

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 doi) OR (sach moi)) tac, nghien cuu long soc nganh khong hoc xa hai van nhan dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu ((sach doi) OR (sach moi)) tac, nghien cuu long soc nganh khong hoc xa hai van nhan dan".
• Adding a wildcard symbol may retrieve word variants: thu ((sach doi) OR (sach moi)) tac, nghien cuu long soc nganh khong hoc xa hai van nhan dan*.