Perhaps you should try some spelling variations:
phan khong » phan hong, nhan khong, pham khong
khong hoc » khung hoc, thong hoc, khong thuoc
mach hoc » dich hoc, anh hoc, bac hoc
cach hoc » cach thuc, cach thoi, dich hoc
hoc phan » hoc dan, hoc pho
phap van » pham van, phan van, phap han
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
hoi ban » hoi dan, hoi bai, doi ban
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: te ((mach hoc) or (cach hoc)) tap, nghien cuu mon hoc phan khong hoc xa hoi ban phap van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((mach hoc) OR (cach hoc)) tap, nghien cuu mon hoc phan khong hoc xa hoi ban phap van.
• Adding a wildcard symbol may retrieve word variants: te ((mach hoc) or (cach hoc)) tap, nghien cuu mon hoc phan khong hoc xa hoi ban phap van*.