Perhaps you should try some spelling variations:
chay tren » thai tren, ca tren, cau tren
toc sach » hoc sach, doc sach, thuoc sach
dinh lai » dinh lam, dinh tai, dinh hai
dinh lap » dinh lam, trinh lap, dinh lang
chau tre » chau tho, cho tre, cau tra
sach ty » sach y, sach tu, sach thu
xang xa » lang xa, mang xa, ang xa
hieu va » lieu va, hieu qua
cam duc » cam xuc, cao duc, pham duc
va cam » va cham, va cac, va cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach ty xang xa hoi. hieu va cam duc va ((dinh lai) OR (dinh lap)) ((chau tre) or (chay tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ty xang xa hoi. hieu va cam duc va ((dinh lai) OR (dinh lap)) ((chau tre) OR (chay tren))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ty xang xa hoi. hieu va cam duc va ((dinh lai) OR (dinh lap)) ((chau tre) or (chay tren))*".