Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh hoan, doanh thanh
nhung tuong » nhung huong, nhung phuong, hung vuong
hien nganh » vien nganh, hien nhanh, trien nganh
hieu nganh » vien nganh, hiem ngan, hieu manh
doanh cua » doanh luan
cua nhung » va nhung
tuong dan » huong dan, tung dan, xuong dan
phan dau » phan tu, hang dau

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 nganh) OR (hieu nganh)) - doanh doanh cua nhung tuong dan ((phan lap) or (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien nganh) OR (hieu nganh)) - doanh doanh cua nhung tuong dan ((phan lap) OR (phan dau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien nganh) OR (hieu nganh)) - doanh doanh cua nhung tuong dan ((phan lap) or (phan dau))".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien nganh) OR (hieu nganh)) - doanh doanh cua nhung tuong dan ((phan lap) or (phan dau))*.