Perhaps you should try some spelling variations:
phan chong » phan cong, phan hong, phap chong
sanh hoc » sinh hoc, anh hoc, danh hoc
cuu dong » cuu cong, cuu tong, cuu long
dong hoc » dong co, dong luc
hoc phan » hoc dan, hoc pho
ban hanh » ban hang
hanh san » thanh san, khach san, thanh son
so sanh » do sanh
hoi ban » hoi dan, hoi bai, doi ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sanh hoc tap, nghien cuu dong hoc phan chong ((hoc xa) or (hoc ma)) hoi ban hanh san~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sanh hoc tap, nghien cuu dong hoc phan chong ((hoc xa) OR (hoc ma)) hoi ban hanh san.
• Adding a wildcard symbol may retrieve word variants: so sanh hoc tap, nghien cuu dong hoc phan chong ((hoc xa) or (hoc ma)) hoi ban hanh san*.