Perhaps you should try some spelling variations:
mach hoc » cach hoc, dich hoc, anh hoc
hoc ngan » hoc nganh, boc ngan, hoc nga
hang hoc » hang hoa, nang hoc, bang hoc
dap phan » dam phan, cap phan, dan phan
dap phap » danh phap, ban phap, va phap
tu mach » tu cach, tu manh, tu hach
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong 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 mach hoc tap, nghien cuu mon hoc ngan hang hoc xa hoi ((dap phan) OR (dap phap)) tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu mach hoc tap, nghien cuu mon hoc ngan hang hoc xa hoi ((dap phan) OR (dap phap)) tu".
• Adding a wildcard symbol may retrieve word variants: tu mach hoc tap, nghien cuu mon hoc ngan hang hoc xa hoi ((dap phan) OR (dap phap)) tu*.