Perhaps you should try some spelling variations:
quan dung » quang dung, quan duong, qua dung
thong cau » thong cac, thong cap, thong tu
chi xanh » chi danh, chi hanh, chieu xanh
cach ban » cac ban, cach bao, cach ben
ban quan » van quan
cong van » cong vang, song van, cong tan
cong san » cong tac
chi anh » chi danh, chi hanh, thi anh

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chi xanh) or (chi anh)) - cach ban quan dung ((cong van) OR (cong san)) thong cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chi xanh) OR (chi anh)) - cach ban quan dung ((cong van) OR (cong san)) thong cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chi xanh) or (chi anh)) - cach ban quan dung ((cong van) OR (cong san)) thong cau".
• Adding a wildcard symbol may retrieve word variants: doi ((chi xanh) or (chi anh)) - cach ban quan dung ((cong van) OR (cong san)) thong cau*.