Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
hieu cao » chieu cao, hieu cac, hieu ca
chat xuc » chat huu, cam xuc, chao xu
mang xa » lang xa, mang may, dang xay
cuu tre » cua tre, cau tren, cau treo
sach v » sach va, sach y, sach 2
xuc va » duc va, tuc va, luc va
dau va » dau ve

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 v ((mang xa) or (nang x)) hoi. hieu cao chat xuc va ((dau va) or (lau va)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach v ((mang xa) OR (nang x)) hoi. hieu cao chat xuc va ((dau va) OR (lau va)) cuu tre.
• Adding a wildcard symbol may retrieve word variants: toc sach v ((mang xa) or (nang x)) hoi. hieu cao chat xuc va ((dau va) or (lau va)) cuu tre*.