Perhaps you should try some spelling variations:
nganh hoa » thanh hoa, khanh hoa, danh hoa
danh nhan » doanh nhan, thanh nhan, benh nhan
thu mach » thu sach, thuat mach, thu hoach
mach hoc » cach hoc, dich hoc, anh hoc
dung cua » dung luan, dung cho
hoi danh » hop danh, hoi dan, hoc danh
nhan tai » hang tai, van tai, toan tai
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: thu mach hoc tap, nghien cuu ((mon hoc) or (dung cua)) nganh hoa hoc xa hoi danh nhan tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu mach hoc tap, nghien cuu ((mon hoc) OR (dung cua)) nganh hoa hoc xa hoi danh nhan tai.
• Adding a wildcard symbol may retrieve word variants: thu mach hoc tap, nghien cuu ((mon hoc) or (dung cua)) nganh hoa hoc xa hoi danh nhan tai*.