Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
hanh tranh » canh tranh, hanh trang, lanh tranh
hanh trinh » canh tranh, hanh chinh
thong cong » trong cong, tong cong, thong thong
ho chieu » hoc thieu, doi chieu, mot chieu
va thong » va thuong, va phuong, he thong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
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: ((ho chieu) OR (theo chieu)) sang - ((hanh tranh) or (hanh trinh)) va thong cong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chieu)) sang - ((hanh tranh) OR (hanh trinh)) va thong cong dan toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (theo chieu)) sang - ((hanh tranh) or (hanh trinh)) va thong cong dan toan ban".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (theo chieu)) sang - ((hanh tranh) or (hanh trinh)) va thong cong dan toan ban*.