Perhaps you should try some spelling variations:
hung vuong » hoang vuong
hung cuong » hong cuong, hung luong, quang cuong
hien xanh » hien nhanh, chieu xanh, hien khanh
hien hanh » dieu hanh
tranh van » tran van, trinh van, thanh van
dan chan » dan gian, dan ca, van chat
chan tu » phan tu, han tu, chon tu

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 xanh) or (hien hanh)) - canh tranh van ((hung cuong) OR (hung vuong)) dan chan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (hien hanh)) - canh tranh van ((hung cuong) OR (hung vuong)) dan chan tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien xanh) or (hien hanh)) - canh tranh van ((hung cuong) OR (hung vuong)) dan chan tu".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (hien hanh)) - canh tranh van ((hung cuong) OR (hung vuong)) dan chan tu*.