Perhaps you should try some spelling variations:
cuu phuong » cac phuong, thu phuong
phuong hoc » phuong hoa, thuong hoc, phuong thuc
hoc thanh » hoc nhanh, hoan thanh, hoc phan
thanh hoa » thanh pho
mach hoc » cach hoc, dich hoc, anh hoc
khoa cam » khoan cam, khoa kham, khoa ma
nhan dan » phan dau, gian dan
nhan tai » hang tai, van tai, toan tai
tu mach » tu cach, tu manh, tu hach
hoc da » hoc dan, hoc dai, hoc dat

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu mach hoc tap, nghien cuu phuong hoc thanh hoa hoc da khoa cam ((nhan dan) or (nhan tai))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu mach hoc tap, nghien cuu phuong hoc thanh hoa hoc da khoa cam ((nhan dan) OR (nhan tai)).
• Adding a wildcard symbol may retrieve word variants: tu mach hoc tap, nghien cuu phuong hoc thanh hoa hoc da khoa cam ((nhan dan) or (nhan tai))*.