Perhaps you should try some spelling variations:
bang huong » bang phuong, ban huong, bang tuong
hien nhanh » thien thanh, tien thanh, dien thanh
bang suong » bang song, bang tuong, bang phuong
hien hanh » dieu hanh
tranh cua » doanh cua, manh cua
dan toan » van toan, dan than, manh toan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien nhanh) or (hien hanh)) - canh tranh cua ((bang huong) OR (bang suong)) dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien nhanh) OR (hien hanh)) - canh tranh cua ((bang huong) OR (bang suong)) dan toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien nhanh) or (hien hanh)) - canh tranh cua ((bang huong) OR (bang suong)) dan toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien nhanh) or (hien hanh)) - canh tranh cua ((bang huong) OR (bang suong)) dan toan ban*.