Perhaps you should try some spelling variations:
sinh thu » sinh thuc, minh thu, sinh tu
van dinh » van minh, van dich, va dinh
dinh te » kinh te, dich te, dinh ve
cau luc » cau truc, cau phuc
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va, hieu van
lang xa » lang ha, dang xay, lang van
xang xa » mang xa, ang xa, dang xay
te cua » tue cua, le cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc sinh thu ((xang xa) OR (lang xa)) hoi. hieu ve ((cau luc) or (cam xuc)) van dinh te cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sinh thu ((xang xa) OR (lang xa)) hoi. hieu ve ((cau luc) OR (cam xuc)) van dinh te cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc sinh thu ((xang xa) OR (lang xa)) hoi. hieu ve ((cau luc) or (cam xuc)) van dinh te cua tre".
• Adding a wildcard symbol may retrieve word variants: hoc sinh thu ((xang xa) OR (lang xa)) hoi. hieu ve ((cau luc) or (cam xuc)) van dinh te cua tre*.