Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
hien xanh » hien hanh, hien nhanh, chieu xanh
tranh cua » doanh cua, manh cua
nhung don » nhung van, nhung bo
hang cong » dang cong, hang nong, bang cong
dan hanh » dang hanh, dan khanh, dan thanh
hanh tu » anh tu, danh 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 - hanh tranh cua ((nhung don) or (hang cong)) dan hanh tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - hanh tranh cua ((nhung don) OR (hang cong)) dan hanh tu.
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh tranh cua ((nhung don) or (hang cong)) dan hanh tu*.