Perhaps you should try some spelling variations:
nhung xuong » nhung huong, nhung tuong, nhung phuong
hien nganh » vien nganh, hien nhanh, hieu nganh
dong doanh » dung doanh, trong doanh, doanh doanh
doanh hoan » doanh doanh, doanh khoa, doanh nhan
cua nhung » va nhung
xuong dan » huong dan, xuong san, tuong 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 - ((dong doanh) or (doanh hoan)) cua nhung xuong dan ((phan lap) or (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien nganh - ((dong doanh) OR (doanh hoan)) cua nhung xuong dan ((phan lap) OR (phan dau)).
• Adding a wildcard symbol may retrieve word variants: hoc hien nganh - ((dong doanh) or (doanh hoan)) cua nhung xuong dan ((phan lap) or (phan dau))*.