Perhaps you should try some spelling variations:
hanh trinh » hanh chinh
nhung cong » dung cong, thong cong, hang cong
hien xanh » hien hanh, hien nhanh, chieu xanh
cua nhung » va nhung
cong dan » cong san, cong tan, huong dan
thang tu » thong tu, thanh tu, hang tu
than tu » thanh tu, phan tu, tran 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 trinh) OR (canh tranh)) cua nhung cong dan ((than tu) or (thang tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - ((hanh trinh) OR (canh tranh)) cua nhung cong dan ((than tu) OR (thang tu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - ((hanh trinh) OR (canh tranh)) cua nhung cong dan ((than tu) or (thang tu))".
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - ((hanh trinh) OR (canh tranh)) cua nhung cong dan ((than tu) or (thang tu))*.