Perhaps you should try some spelling variations:
thong danh » thong lanh, trong danh, thong thanh
hanh trinh » hanh chinh
hieu lang » chieu sang, hieu quang, nhieu tang
thong dan » thong van, tuong dan, thong den
nho hieu » nha hieu, nho sieu, nhu hieu
va thong » va thuong, va phuong, he thong
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: nho hieu lang - ((canh tranh) or (hanh trinh)) va thong ((thong danh) OR (thong dan)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nho hieu lang - ((canh tranh) OR (hanh trinh)) va thong ((thong danh) OR (thong dan)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "nho hieu lang - ((canh tranh) or (hanh trinh)) va thong ((thong danh) OR (thong dan)) toan ban".
• Adding a wildcard symbol may retrieve word variants: nho hieu lang - ((canh tranh) or (hanh trinh)) va thong ((thong danh) OR (thong dan)) toan ban*.