Perhaps you should try some spelling variations:
lang thang » cang thang, dang thanh, hung thang
hieu xanh » chieu xanh, hieu manh, hieu nganh
tranh cua » doanh cua, manh cua
dang cong » dung cong
lang toan » dang toan, lang thanh, quang toan
doc hieu » toc thieu, hoc thieu, hoc hien
cua dang » cua cong, cua ban

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 tranh cua dang cong ((lang toan) or (lang thang)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - canh tranh cua dang cong ((lang toan) OR (lang thang)) tap.
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - canh tranh cua dang cong ((lang toan) or (lang thang)) tap*.