Perhaps you should try some spelling variations:
thanh phong » thanh phuong, khanh phong, thanh hong
hoc thanh » hoc nhanh, hoan thanh, hoc phan
phong hoc » phong ho, thong hoc, phuong hoa
mach hoc » cach hoc, dich hoc, anh hoc
nhan dan » phan dau, gian dan, nhan tai
hang tai » hang va, dung tai
te mach » ke mach, te sach, tim mach
cuu mot » cua mot, cuu mo, huu mot
mot hoc » mon hoc, mo hoc, mot goc
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 tap, nghien cuu mot hoc thanh phong hoc xa hoi va ((nhan dan) or (hang tai))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te mach hoc tap, nghien cuu mot hoc thanh phong hoc xa hoi va ((nhan dan) OR (hang tai)).
• Adding a wildcard symbol may retrieve word variants: te mach hoc tap, nghien cuu mot hoc thanh phong hoc xa hoi va ((nhan dan) or (hang tai))*.