Perhaps you should try some spelling variations:
hanh trinh » canh tranh
hong diep » thong dieu, phong dieu, thong dien
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan
phan tap » phan lap, han tap, pha tap
va hang » van hang, va nang, va hanh
va lang » va nang, hoa lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: hong diep tinh - ((hanh trinh) or (hanh chinh)) ((va hang) OR (va lang)) cong dan phan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hong diep tinh - ((hanh trinh) OR (hanh chinh)) ((va hang) OR (va lang)) cong dan phan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hong diep tinh - ((hanh trinh) or (hanh chinh)) ((va hang) OR (va lang)) cong dan phan tap".
• Adding a wildcard symbol may retrieve word variants: hong diep tinh - ((hanh trinh) or (hanh chinh)) ((va hang) OR (va lang)) cong dan phan tap*.