Perhaps you should try some spelling variations:
hanh ve » hanh vi, hanh va, hanh kem
hanh di » hanh vi, hanh de, hang di
sach ty » sach tu, sach thu, xach tay
cuu tre » cua tre, cau tren, cau treo
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, nang ma
cao tu » cao thu, co tu, cao su
va cao » va cac, va co, va dao

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 ty) or (sach y)) nang xa hoi. hieu va cao tu va ((hanh di) or (hanh ve)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ty) OR (sach y)) nang xa hoi. hieu va cao tu va ((hanh di) OR (hanh ve)) cuu tre.
• Adding a wildcard symbol may retrieve word variants: te ((sach ty) or (sach y)) nang xa hoi. hieu va cao tu va ((hanh di) or (hanh ve)) cuu tre*.