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
nhan dan » phan dau, gian dan
sach doi » sach hoi, sach moi, sach dao
thu sach » tu sach, thuat sach, thuoc sach
long soc » lon soc, luong suc, cong so
cuu long » cuu cong, cuu tong, cuu nang
nhan tai » hang tai, van tai, toan tai
hai van » thai van, ha van, hai tan
doi tai » hoi tai, dai tai, doi tac
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 tai, nghien cuu long soc nganh khong hoc xa hai van ((nhan dan) OR (nhan tai))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach doi tai, nghien cuu long soc nganh khong hoc xa hai van ((nhan dan) OR (nhan tai))".
• Adding a wildcard symbol may retrieve word variants: thu sach doi tai, nghien cuu long soc nganh khong hoc xa hai van ((nhan dan) OR (nhan tai))*.