Perhaps you should try some spelling variations:
hoc nganh » hoc nhanh
nganh hoa » thanh hoa, khanh hoa, danh hoa
mach hoc » cach hoc, dich hoc, anh hoc
hieu mot » thieu mot, hieu moi, hieu so
nhan dan » phan dau, gian dan, nhan tai
tu mach » tu cach, tu manh, tu hach
hoc mai » hoc ma, hoc dai, hoc bai
mai hoi » mai khoi, dai hoi, lai hoi
va nhan » van nhan, ca nhan, va phan

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 ((thu cong) or (hieu mot)) hoc nganh hoa hoc mai hoi va nhan dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu mach hoc tap, nghien ((thu cong) OR (hieu mot)) hoc nganh hoa hoc mai hoi va nhan dan.
• Adding a wildcard symbol may retrieve word variants: tu mach hoc tap, nghien ((thu cong) or (hieu mot)) hoc nganh hoa hoc mai hoi va nhan dan*.