Perhaps you should try some spelling variations:
nhanh lang » nhanh quang, nhanh thang, nhan dang
nhung cong » dung cong, thong cong, hang cong
hieu xanh » chieu xanh, hieu manh, hieu nganh
hanh mang » nhanh mang, hanh trang, thanh hang
cua nhung » va nhung
doc hieu » toc thieu, hoc thieu, hoc hien
cong dan » cong san, cong tan, huong dan
cac cau » cac mau, ca cau, cac cam
bac cau » bach cau, ba cau, bac can

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu xanh - ((hanh mang) or (nhanh lang)) cua nhung cong dan ((cac cau) OR (bac cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - ((hanh mang) OR (nhanh lang)) cua nhung cong dan ((cac cau) OR (bac cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu xanh - ((hanh mang) or (nhanh lang)) cua nhung cong dan ((cac cau) OR (bac cau))".
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - ((hanh mang) or (nhanh lang)) cua nhung cong dan ((cac cau) OR (bac cau))*.