Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
bang huong » bang phuong, bang suong, bang tuong
canh manh » lanh manh, canh tranh, cach mang
ban huong » bang phuong, ban hang, anh huong
manh cua » doanh cua, ban cua
dan than » dan chan, ban than, van than
than tap » toan tap, han tap, phan tap

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 - canh manh cua ((bang huong) OR (ban huong)) dan than tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien nhanh - canh manh cua ((bang huong) OR (ban huong)) dan than tap".
• Adding a wildcard symbol may retrieve word variants: hoc hien nhanh - canh manh cua ((bang huong) OR (ban huong)) dan than tap*.