Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh trinh » canh tranh, hanh chinh
hieu lang » chieu sang, hieu quang, nhieu tang
trinh cua » tinh cua, trinh luat, trinh quan
cua nhung » va nhung
cong san » cong tac
toan cao » toan ban
toan tap » toan ban

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) or (trieu tinh)) - hanh trinh cua nhung cong san ((toan cao) OR (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (trieu tinh)) - hanh trinh cua nhung cong san ((toan cao) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu lang) or (trieu tinh)) - hanh trinh cua nhung cong san ((toan cao) OR (toan tap))".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) or (trieu tinh)) - hanh trinh cua nhung cong san ((toan cao) OR (toan tap))*.