Perhaps you should try some spelling variations:
bang khoa » hang khoa, dang khoa, vang khoa
hoc bang » hoc bong, hoc tang, hoc dan
khoa hoc » hoa hoc
cua phan » cua nhan, cua phap, cua han
phan van » pham van, thanh van, luan van
tu manh » tu hanh, vu manh, tung manh
tu minh » thu minh, vu minh, thi minh
hon tap » hoc tap, han tap, con tap
hoi cua » hoi chuc
mo hoc » mon hoc, co hoc
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: ((tu manh) or (tu minh)) hon tap, nghien cuu mo hoc bang khoa hoc xa hoi cua phan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu manh) OR (tu minh)) hon tap, nghien cuu mo hoc bang khoa hoc xa hoi cua phan van.
• Adding a wildcard symbol may retrieve word variants: ((tu manh) or (tu minh)) hon tap, nghien cuu mo hoc bang khoa hoc xa hoi cua phan van*.