Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
canh trinh » canh tranh, canh tinh, anh trinh
hieu xanh » chieu xanh, hieu manh, hieu nganh
hang cong » dang cong, hang nong, bang cong
doc hieu » toc thieu, hoc thieu, hoc hien
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan
va hang » van hang, va nang, va lang

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 - ((canh trinh) OR (hanh trinh)) va hang cong dan phan tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu xanh - ((canh trinh) OR (hanh trinh)) va hang cong dan phan tu".
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - ((canh trinh) OR (hanh trinh)) va hang cong dan phan tu*.