Perhaps you should try some spelling variations:
hanh trinh » canh tranh
nhung cong » dung cong, thong cong, hang cong
hien xanh » hien hanh, hien nhanh, chieu xanh
van nhung » van nhuong, va nhung, van hung
cong ban » cong bang, cong san, cong tan
ban than » ban thanh, van thanh, ban hang
than ban » thanh ban, toan ban, than man

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) OR (hanh chinh)) van nhung cong ban than ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - ((hanh trinh) OR (hanh chinh)) van nhung cong ban than ban".
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - ((hanh trinh) OR (hanh chinh)) van nhung cong ban than ban*.