Perhaps you should try some spelling variations:
theo hieu » theo chieu, theo tieu, thien hieu
hieu lang » chieu sang, hieu quang, nhieu tang
tranh cua » doanh cua, manh cua
dang cong » dung cong
cua dang » cua cong, cua ban
cong dan » cong san, cong tan, huong dan
phan cau » phan cac, phan tu, phan lap
phan dau » phan tu
hang dau » hang va, hang tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo hieu lang - canh tranh cua dang cong dan ((phan cau) or (((phan dau) OR (hang dau))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo hieu lang - canh tranh cua dang cong dan ((phan cau) OR (((phan dau) OR (hang dau)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo hieu lang - canh tranh cua dang cong dan ((phan cau) or (((phan dau) OR (hang dau))))".
• Adding a wildcard symbol may retrieve word variants: theo hieu lang - canh tranh cua dang cong dan ((phan cau) or (((phan dau) OR (hang dau))))*.