Perhaps you should try some spelling variations:
quan thong » quang thong, quan trong, xuan thong
phong cau » thong cau, phong cac, phong cai
khi xanh » khia canh, thi hanh, thi anh
ban quan » van quan
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
cac ban » cac dan, cac van, can ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi khi xanh - cac ban quan thong ((cong dan) or (cong san)) phong cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi khi xanh - cac ban quan thong ((cong dan) OR (cong san)) phong cau.
• Adding a wildcard symbol may retrieve word variants: doi khi xanh - cac ban quan thong ((cong dan) or (cong san)) phong cau*.