Perhaps you should try some spelling variations:
nganh khong » nhanh chong, nganh nong, nganh khoa
nganh cong » nhanh chong, thanh cong
sach thuc » cach thuc, sach thu, sach thue
thuc thai » thuc pham, toc thai, thuc thuc
thai van » thi van, thanh van, thai vung
van nhan » van phan, van thanh, danh nhan
nhan van » nhan dan, nhan va, phan van
su sach » so sach, vu sach
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
xa thai » ca thai, a thai, da thai
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: su sach thuc thai, nghien cuu mon hoc ((nganh khong) OR (nganh cong)) hoc xa thai van nhan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach thuc thai, nghien cuu mon hoc ((nganh khong) OR (nganh cong)) hoc xa thai van nhan van*".