Perhaps you should try some spelling variations:
hieu xanh » chieu xanh, hieu manh, hieu nganh
doanh cua » doanh luan
hang cong » dang cong, hang nong, bang cong
doc hieu » toc thieu, hoc thieu, hoc hien
manh cua » ban cua
cong dan » cong san, cong tan, huong dan
phan cau » phan dau, phan cac, phan lap

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 - canh ((manh cua) or (doanh cua)) hang cong dan ((phan cau) or (phan tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - canh ((manh cua) OR (doanh cua)) hang cong dan ((phan cau) OR (phan tu)).
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - canh ((manh cua) or (doanh cua)) hang cong dan ((phan cau) or (phan tu))*.