Perhaps you should try some spelling variations:
hanh trinh » canh tranh
chua duong » chua dong, thuy duong, cau duong
duong cong » dung cong, luong cong, duong trong
tieu xanh » tieu danh, chieu xanh, dieu hanh
tac thanh » cac thanh, tcc thanh, tuc thanh
bac thanh » ban thanh, cac thanh, tai thanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu xanh - ((hanh trinh) OR (hanh chinh)) chua duong cong ((tac thanh) or (bac thanh)) cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - ((hanh trinh) OR (hanh chinh)) chua duong cong ((tac thanh) OR (bac thanh)) cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - ((hanh trinh) OR (hanh chinh)) chua duong cong ((tac thanh) or (bac thanh)) cac".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - ((hanh trinh) OR (hanh chinh)) chua duong cong ((tac thanh) or (bac thanh)) cac*.