Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
nhung cong » thong cong, hang cong, nhung don
hieu lang » chieu sang, hieu quang, nhieu tang
dung cong » dung trong
phan cac » nhan cach, phan lap, phan van
phan dau » phan tu, hang dau
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 luat ((nhung cong) or (dung cong)) tan ((phan cac) OR (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - hanh trinh luat ((nhung cong) OR (dung cong)) tan ((phan cac) OR (phan dau))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho hieu lang - hanh trinh luat ((nhung cong) or (dung cong)) tan ((phan cac) OR (phan dau))*".