Perhaps you should try some spelling variations:
nganh khong » nhanh chong, nganh nong, nganh khoa
nghien cac » nghiep cach, nghien cuu, nghiep cay
nganh cong » nhanh chong, thanh cong
chau nhan » chan nhan, chau phan, ca nhan
sach hoc » cach hoc, sach hoi, mach hoc
cac cong » cua cong
cong hoa » dong hoa, dong hoc, hang hoa
hoi chau » hoi chu, hoi cham, hai chau
tu sach » thu sach, su sach, te sach
nhan va » nhan tai, nhan dan, nhan tao
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: tu sach hoc tap, nghien cac cong hoa ((nganh khong) OR (nganh cong)) hoc xa hoi chau nhan va~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach hoc tap, nghien cac cong hoa ((nganh khong) OR (nganh cong)) hoc xa hoi chau nhan va".
• Adding a wildcard symbol may retrieve word variants: tu sach hoc tap, nghien cac cong hoa ((nganh khong) OR (nganh cong)) hoc xa hoi chau nhan va*.