Perhaps you should try some spelling variations:
hanh de » hanh ve, hanh kem
tuc van » thuc van, truc van, tuc va
cao tuc » dao tuc, cao duc, cao suc
sach ty » sach y, sach tu, sach thu
cuu tre » cua tre, cau tren, cau treo
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, nang ma
cach tu » cach thuc
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 (cach tu)) nang xa hoi. hieu va cao tuc van ((hanh de) or (hanh vi)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ty) OR (cach tu)) nang xa hoi. hieu va cao tuc van ((hanh de) OR (hanh vi)) cuu tre.
• Adding a wildcard symbol may retrieve word variants: te ((sach ty) or (cach tu)) nang xa hoi. hieu va cao tuc van ((hanh de) or (hanh vi)) cuu tre*.