Perhaps you should try some spelling variations:
cua thuong » cua truong, cua phuong, ca thuong
hieu xanh » chieu xanh, hieu manh, hieu nganh
hanh sinh » hanh tinh, hanh dinh, hinh sinh
doc hieu » toc thieu, hoc thieu, hoc hien
sinh cua » manh cua, dinh cuu, sinh va
toan tai » toan tap, doanh tai, toan cao
toan ban » van ban
con dan » cong dan, con ban, con day
co dan » co ban, ca dan, cao dang

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 sinh cua thuong ((con dan) or (co dan)) ((toan tai) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - hanh sinh cua thuong ((con dan) OR (co dan)) ((toan tai) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - hanh sinh cua thuong ((con dan) or (co dan)) ((toan tai) or (toan ban))*.