Perhaps you should try some spelling variations:
chieu chien » thien chien, hieu hien
van hanh » van thanh, ban hanh, van anh
can thuc » dan thuc, van thuc, cay thuc
cac thuc » cach thuc, cac thu, cay thuc
lang van » dang van, tang van, hoang van
so sach » bo sach, co sach, hoc sach
van hoi » van hoa, van hoc, van hoe
so sanh » do sanh
y lang » o lang, _ lang, tay lang
vi cua » vai cua, di cua
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((so sach) OR (so sanh)) y lang van hoi. chieu chien ((cac thuc) or (can thuc)) van hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (so sanh)) y lang van hoi. chieu chien ((cac thuc) OR (can thuc)) van hanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so sach) OR (so sanh)) y lang van hoi. chieu chien ((cac thuc) or (can thuc)) van hanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: ((so sach) OR (so sanh)) y lang van hoi. chieu chien ((cac thuc) or (can thuc)) van hanh vi cua te*.