Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, minh trang
hanh trinh » canh tranh, hanh chinh
thong cong » trong cong, tong cong, thong thong
theo nghi » cheo nghe, ho nghi, thue nghi
theo chi » theo chu, theo chieu, thep chiu
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 cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chi) OR (theo nghi)) lang - ((hanh trang) or (hanh trinh)) va thong cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chi) OR (theo nghi)) lang - ((hanh trang) OR (hanh trinh)) va thong cong dan toan cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chi) OR (theo nghi)) lang - ((hanh trang) or (hanh trinh)) va thong cong dan toan cao*".