Perhaps you should try some spelling variations:
hoc nganh » hoc nhanh
nganh hoa » thanh hoa, khanh hoa, danh hoa
chau nhan » chan nhan, chau phan, ca nhan
sach hoc » cach hoc, sach hoi, mach hoc
cuu cong » cua cong, thu cong, cac cong
cuu nang » chuc nang, cam nang, cuu van
hoi chau » hoi chu, hoi cham, hai chau
nhan van » nhan dan, nhan va, phan van
so sach » so sanh, bo sach, co sach
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 hoc tap, nghien ((cuu cong) or (cuu nang)) hoc nganh hoa hoc xa hoi chau nhan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach hoc tap, nghien ((cuu cong) OR (cuu nang)) hoc nganh hoa hoc xa hoi chau nhan van.
• Adding a wildcard symbol may retrieve word variants: so sach hoc tap, nghien ((cuu cong) or (cuu nang)) hoc nganh hoa hoc xa hoi chau nhan van*.