Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
van dinh » van minh, van dich, va dinh
sach thu » sach thue, sach thieu, sach tham
cam luc » cau luc
dinh ve » dinh ket, dinh van
sach tu » cach tu, sach ty, sach uu
hieu ve » hieu va, hieu van
xang xa » lang xa, mang xa, ang xa
ve cau » ke cau, va cau, ve cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((sach tu) or (sach thu)) xang xa hoi. hieu ve ((cam luc) or (cam xuc)) van dinh ve cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach tu) OR (sach thu)) xang xa hoi. hieu ve ((cam luc) OR (cam xuc)) van dinh ve cau tren.
• Adding a wildcard symbol may retrieve word variants: te ((sach tu) or (sach thu)) xang xa hoi. hieu ve ((cam luc) or (cam xuc)) van dinh ve cau tren*.