Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh trinh » hanh chinh
cua nhung » va nhung
ban thanh » ban hanh, ban hang
ban than » van thanh, ban hang, ban hanh
ha tinh » va tinh, may tinh
ho ha » pho ha, ho hap, o ha

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ha tinh - ((hanh trinh) or (canh tranh)) cua nhung cong ((ban than) OR (ban thanh)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ha tinh - ((hanh trinh) OR (canh tranh)) cua nhung cong ((ban than) OR (ban thanh)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ha tinh - ((hanh trinh) or (canh tranh)) cua nhung cong ((ban than) OR (ban thanh)) cao".
• Adding a wildcard symbol may retrieve word variants: ho ha tinh - ((hanh trinh) or (canh tranh)) cua nhung cong ((ban than) OR (ban thanh)) cao*.