Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
cua thuong » cua truong, cua phuong, ca thuong
hien xanh » hien hanh, hien nhanh, chieu xanh
cua khong » hua khong, cua phuong, cua cong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan ban » van ban

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 trinh ((cua khong) or (cua thuong)) cong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - hanh trinh ((cua khong) OR (cua thuong)) cong dan toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh trinh ((cua khong) or (cua thuong)) cong dan toan ban*.