Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
nhanh mang » nhanh lang, nhanh quang, nhanh thang
hieu manh » chieu xanh, hieu nganh, dieu hanh
hanh mang » hanh trang, nhanh lang, thanh hang
dang cong » dung cong
cua dang » cua cong, cua ban
cong van » cong vang, cong san, song van
van van » tan van, san van, van vat

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((hieu manh) or (chieu sang)) - ((hanh mang) OR (nhanh mang)) cua dang cong van van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((hieu manh) OR (chieu sang)) - ((hanh mang) OR (nhanh mang)) cua dang cong van van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((hieu manh) or (chieu sang)) - ((hanh mang) OR (nhanh mang)) cua dang cong van van ban".
• Adding a wildcard symbol may retrieve word variants: doi ((hieu manh) or (chieu sang)) - ((hanh mang) OR (nhanh mang)) cua dang cong van van ban*.