Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
chieu xanh » chieu sach, chieu sang, chieu tinh
nhung cong » dung cong, thong cong, nhung don
hieu manh » hieu nganh, dieu hanh, hien hanh
trinh cua » tinh cua, trinh luat, trinh quan
hang cong » dang cong, hang nong, bang cong
dan thanh » dang thanh, danh thanh, ban thanh
thanh ca » thanh cha, thanh cac, thanh ha

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hieu manh) OR (chieu xanh)) - hanh trinh cua ((nhung cong) or (hang cong)) dan thanh ca~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (chieu xanh)) - hanh trinh cua ((nhung cong) OR (hang cong)) dan thanh ca.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hieu manh) OR (chieu xanh)) - hanh trinh cua ((nhung cong) or (hang cong)) dan thanh ca".
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) OR (chieu xanh)) - hanh trinh cua ((nhung cong) or (hang cong)) dan thanh ca*.