Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hieu lang » chieu sang, hieu quang, nhieu tang
dung cong » dung trong
dan chinh » dang chinh, lan chinh, ban chinh
van chinh » va chinh, lan chinh, van thinh
trinh su » trinh tu, trinh san, trinh cau
ho hieu » ho chieu, hoi hieu, nho hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu lang - hanh trinh su dung cong ((dan chinh) OR (van chinh)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho hieu lang - hanh trinh su dung cong ((dan chinh) OR (van chinh)) cau".
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - hanh trinh su dung cong ((dan chinh) OR (van chinh)) cau*.