Perhaps you should try some spelling variations:
hoc nganh » hoc nhanh
chung hoc » trung hoc, dung hoc, hung hoa
thong hoc » thuong hoc, tuong hoc, thong hoa
sach doi » sach hoi, sach moi, sach dao
van nhan » van phan, van thanh, danh nhan
tu sach » thu sach, su sach, te sach
doi tap » doi tac, doi dap, doi tai
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
hoi van » hoi va, hoi dan, hai van
nhan va » nhan tai, nhan dan, nhan tao
ma hoi » mai hoi, xa hoi, ma hoa

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 doi tap, nghien cuu mon hoc nganh ((chung hoc) or (thong hoc)) ma hoi van nhan va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach doi tap, nghien cuu mon hoc nganh ((chung hoc) OR (thong hoc)) ma hoi van nhan va*.