Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
cho thanh » cho phan, tro thanh, cuu thanh
hanh tang » anh tang, hanh mang, hanh tung
cho xanh » cho doanh, cho sinh, cho hang
dong dan » dong danh, duong dan, dong san
dan toan » van toan, dan than, manh toan
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: cao ((cho xanh) OR (cho thanh)) - ((hanh tang) or (hanh trang)) luan van dong dan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cao ((cho xanh) OR (cho thanh)) - ((hanh tang) OR (hanh trang)) luan van dong dan toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "cao ((cho xanh) OR (cho thanh)) - ((hanh tang) or (hanh trang)) luan van dong dan toan tap".
• Adding a wildcard symbol may retrieve word variants: cao ((cho xanh) OR (cho thanh)) - ((hanh tang) or (hanh trang)) luan van dong dan toan tap*.