Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
thong cong » trong cong, tong cong, thong thong
manh dung » manh hung, manh tung, anh dung
dung toan » dung doanh, dung thang, dung thanh
thanh mau » thanh san, thanh hai, thanh ngu
cong tan » cong tac, cong san, cong thanh
hanh mau » anh mau, hanh ma, hanh may

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu xanh) or (chieu sach)) - manh dung toan thong cong tan ((thanh mau) OR (hanh mau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chieu sach)) - manh dung toan thong cong tan ((thanh mau) OR (hanh mau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) or (chieu sach)) - manh dung toan thong cong tan ((thanh mau) OR (hanh mau))".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (chieu sach)) - manh dung toan thong cong tan ((thanh mau) OR (hanh mau))*.