Perhaps you should try some spelling variations:
hieu cao » chieu cao, hieu cac, hieu ca
te sach » toc sach
nang xa » lang xa, nang ma, mang xa
cua tre » cua te, cuu tre, cua triet
sach v » sach va, sach y, sach 2
luc va » tuc va, loc va
dau va » dau ve, lau va
va cua » va chua, via cua, ca cua

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 v ((nang xa) or (nang x)) hoi. hieu cao chat ((luc va) OR (duc va)) dau va cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach v ((nang xa) OR (nang x)) hoi. hieu cao chat ((luc va) OR (duc va)) dau va cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach v ((nang xa) or (nang x)) hoi. hieu cao chat ((luc va) OR (duc va)) dau va cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach v ((nang xa) or (nang x)) hoi. hieu cao chat ((luc va) OR (duc va)) dau va cua tre*.