Perhaps you should try some spelling variations:
nhung duong » nhung dung, nhung huong, nhung tuong
luan nhung » luan chung, luan hung, quan nhung
hien hanh » dieu hanh
hanh tang » hanh trang, anh tang, hanh mang
tang luan » dung luan
duong van » duong va, luong va, dang van
thanh tai » thanh hai, thanh toan, doanh tai
thanh lap » thanh san, phan lap, thanh hai
hien anh » thien anh, dien anh, tien anh

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 anh) OR (hien hanh)) - hanh tang luan nhung duong van ((thanh tai) or (thanh lap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien anh) OR (hien hanh)) - hanh tang luan nhung duong van ((thanh tai) OR (thanh lap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien anh) OR (hien hanh)) - hanh tang luan nhung duong van ((thanh tai) or (thanh lap))".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien anh) OR (hien hanh)) - hanh tang luan nhung duong van ((thanh tai) or (thanh lap))*.