Perhaps you should try some spelling variations:
nhanh khong » nhanh chong, nganh khong, nhan khong
nghien huu » nghien cuu, nhiem huu, chien huu
nguyen huu » nguyen duc
hoc nhanh » hoc nganh, hoc phan
khong hoc » khung hoc, thong hoc, khong thuoc
sach hoc » cach hoc, sach hoi, mach hoc
nhan dan » phan dau, gian dan, nhan tai
tu sach » thu sach, su sach, te sach
mot hoc » mon hoc, mo hoc, mot goc
ma hoi » mai hoi, xa hoi, ma hoa
hoi ca » hoi cua, hoi cac, hoi cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach hoc tap, ((nghien huu) or (nguyen huu)) mot hoc nhanh khong hoc ma hoi ca nhan dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach hoc tap, ((nghien huu) OR (nguyen huu)) mot hoc nhanh khong hoc ma hoi ca nhan dan.
• Adding a wildcard symbol may retrieve word variants: tu sach hoc tap, ((nghien huu) or (nguyen huu)) mot hoc nhanh khong hoc ma hoi ca nhan dan*.