Perhaps you should try some spelling variations:
nganh khong » nganh cong, nhanh chong, nganh nong
nghien cua » nghien cuu, nghiep cua, nghiep vua
khong duoc » khong thuoc, thuong duoc, hong duc
hoc nganh » hoc nhanh
gian lang » gian dan
mach hoc » dich hoc, anh hoc, bac hoc
cach hoc » cach thuc, cach thoi, dich hoc
mot hoc » mon hoc, mo hoc, mot goc
duoc ma » duoc lam
hoa » khoa

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((mach hoc) or (cach hoc)) tap, nghien cua mot hoc nganh khong duoc ma hoa dan gian lang~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((mach hoc) OR (cach hoc)) tap, nghien cua mot hoc nganh khong duoc ma hoa dan gian lang.
• Adding a wildcard symbol may retrieve word variants: tu ((mach hoc) or (cach hoc)) tap, nghien cua mot hoc nganh khong duoc ma hoa dan gian lang*.