Perhaps you should try some spelling variations:
nhanh thang » nhanh thanh, nhanh quang, hanh trang
nghien huu » nghien cuu, nguyen huu, nhiem huu
hoc nhanh » hoc nganh, hoc phan
thang hoc » thang nhoc, than hoc, thanh hoc
hach hoc » cach hoc, mach hoc, hoach hoi
tu hach » tu hanh, tu cach, tu sach
huu mot » cuu mot, huy mot, hieu mot
mot hoc » mon hoc, mo hoc, mot goc
va nhan » van nhan, va phan, va nha
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 hach hoc tap, nghien huu mot hoc nhanh thang hoc xa hoi ((va nhan) or (ca nhan)) dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu hach hoc tap, nghien huu mot hoc nhanh thang hoc xa hoi ((va nhan) OR (ca nhan)) dan.
• Adding a wildcard symbol may retrieve word variants: tu hach hoc tap, nghien huu mot hoc nhanh thang hoc xa hoi ((va nhan) or (ca nhan)) dan*.