Perhaps you should try some spelling variations:
soc doanh » so doanh, hoa doanh, voi doanh
doanh hoa » doanh khoa, doanh hoan, danh hoa
mach hoc » cach hoc, dich hoc, anh hoc
cuu tong » cuu cong, cuu tinh, huu tung
tong soc » long soc, tong son, tong quoc
nhan dan » phan dau, gian dan, nhan tai
su mach » su sach
va nhan » van nhan, ca nhan, va phan
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: su mach hoc tap, nghien cuu tong soc doanh hoa hoc ma hoi va nhan dan~.
• Adding a wildcard symbol may retrieve word variants: su mach hoc tap, nghien cuu tong soc doanh hoa hoc ma hoi va nhan dan*.