Perhaps you should try some spelling variations:
nganh thuong » anh thuong, doanh thuong, nang thuong
thuong ho » tuong ho, truong hoc, thuong chi
sach hoc » cach hoc, sach hoi, sach duoc
mach hoc » cach hoc, dich hoc, anh hoc
cuu long » cuu cong, cuu tong, cuu nang
co nganh » hoc nganh, cac nganh, moi nganh
van nhan » van phan, van thanh, danh nhan
nhan dan » phan dau, gian dan, nhan tai
long co » dong co, cong co, lang co
hoi van » hoi va, hoi dan, hai van
ho xa » hoa xa, hoc xa, cho xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu ((sach hoc) OR (mach hoc)) tap, nghien cuu long co nganh thuong ho xa hoi van nhan dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu ((sach hoc) OR (mach hoc)) tap, nghien cuu long co nganh thuong ho xa hoi van nhan dan".
• Adding a wildcard symbol may retrieve word variants: thu ((sach hoc) OR (mach hoc)) tap, nghien cuu long co nganh thuong ho xa hoi van nhan dan*.