Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
hanh trinh » canh tranh
chao chu » cho chu, cua chu, cao cho
chu xanh » chu manh, chieu xanh, chua xang
cong tap » cuong tap, cong tac, cong tan
toan cao » toan tap
toan ban » van ban

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

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