Perhaps you should try some spelling variations:
nhung tuong » nhung huong, nhung phuong, hung vuong
hien xanh » hien hanh, hien nhanh, chieu xanh
tranh van » tran van, trinh van, thanh van
van nhung » van nhuong, va nhung, van hung
tuong dan » huong dan, tung dan, xuong dan
can cau » van cau, ban cau, ca cau
cua chu » sua chua

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 - canh tranh van nhung tuong dan ((can cau) or (cua chu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - canh tranh van nhung tuong dan ((can cau) OR (cua chu)).
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - canh tranh van nhung tuong dan ((can cau) or (cua chu))*.