Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
doanh phan » doanh nhan, doan phan, doanh thanh
hoc nganh » hoc nhanh
nganh hoa » thanh hoa, khanh hoa, danh hoa
hoi doanh » hoa doanh, voi doanh, doi doanh
thu sach » tu sach, thuat sach, thu hoach
cuu tong » cuu cong, cuu tinh, huu tung
tong hoc » tuong hoc, thong hoc, trong 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 sach) OR (thuoc sach)) hoc tap, nghien cuu tong hoc nganh hoa hoc xa hoi doanh phan tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sach) OR (thuoc sach)) hoc tap, nghien cuu tong hoc nganh hoa hoc xa hoi doanh phan tu".
• Adding a wildcard symbol may retrieve word variants: ((thu sach) OR (thuoc sach)) hoc tap, nghien cuu tong hoc nganh hoa hoc xa hoi doanh phan tu*.