Perhaps you should try some spelling variations:
nganh hoa » thanh hoa, khanh hoa, ninh hoa
sach hoc » cach hoc, sach hoi, mach hoc
danh hoa » thanh hoa, khanh hoa, danh cho
nhan dan » phan dau, gian dan, nhan tai
tu sach » thu sach, su sach, te sach
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
va nhan » van nhan, ca nhan, va phan
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 sach hoc tap, nghien cuu mon hoc ((nganh hoa) OR (danh hoa)) hoc xa hoi va nhan dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach hoc tap, nghien cuu mon hoc ((nganh hoa) OR (danh hoa)) hoc xa hoi va nhan dan".
• Adding a wildcard symbol may retrieve word variants: tu sach hoc tap, nghien cuu mon hoc ((nganh hoa) OR (danh hoa)) hoc xa hoi va nhan dan*.