Perhaps you should try some spelling variations:
hanh trinh » hanh chinh
hieu xanh » chieu xanh, hieu manh, hieu nganh
quan nong » quan dong, quan long, luan nong
doc hieu » toc thieu, hoc thieu, hoc hien
thon dan » thong dan, tho dan, thong danh
dan toan » van toan, dan than, manh toan
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu xanh - ((hanh trinh) or (canh tranh)) quan nong thon dan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - ((hanh trinh) OR (canh tranh)) quan nong thon dan toan tap*.