Perhaps you should try some spelling variations:
tcanh tranh » thanh thanh, can tranh, lanh tranh
van duong » van dong, van dung, van phong
chi xanh » chi anh, chi danh, chi hanh
van hung » van dung, manh hung, van dong
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than ban » thanh ban, toan ban, than man
doi chi » doi khi

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

• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi xanh - ((canh tranh) OR (tcanh tranh)) ((van hung) OR (van duong)) cong dan than ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chi xanh - ((canh tranh) or (tcanh tranh)) ((van hung) OR (van duong)) cong dan than ban~".
• Adding a wildcard symbol may retrieve word variants: doi chi xanh - ((canh tranh) or (tcanh tranh)) ((van hung) OR (van duong)) cong dan than ban*.