Perhaps you should try some spelling variations:
phan khong » phan hong, nhan khong, pham khong
khong hoc » khung hoc, thong hoc, khong thuoc
cach hoc » cach thuc, cach thoi, dich hoc
cuu cong » cua cong, thu cong, cac cong
cong hoc » dong hoc, cong hoa, cong coc
hoc phan » hoc dan, hoc pho
phan van » pham van, thanh van, luan van
bac hoc » bai hoc, bac ho
va phan » van phan, va phat, va phap
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 ((bac hoc) or (cach hoc)) tap, nghien cuu cong hoc phan khong hoc xa hoi va phan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((bac hoc) OR (cach hoc)) tap, nghien cuu cong hoc phan khong hoc xa hoi va phan van.
• Adding a wildcard symbol may retrieve word variants: te ((bac hoc) or (cach hoc)) tap, nghien cuu cong hoc phan khong hoc xa hoi va phan van*.