Perhaps you should try some spelling variations:
phan thuc » nhan thuc, phap thuc, pham thuc
vat thanh » dat thanh, gat thanh, tat thanh
thanh hai » thanh phan, thanh hoa, thanh san
cach tru » cach tu, cac tru, cach thuc
tru nang » tra nang, tri nang, truc nano
hieu van » hieu va, thien van, lieu va
so cach » so sach, co cach, loi cach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va
hai cua » thai cua, dai cua, hoi cua
cua tre » cua te, cuu tre, cua triet

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

• Performing a fuzzy search may retrieve terms with similar spellings: so cach tru nang xa hoi. ((hieu ve) or (hieu van)) phan thuc vat thanh hai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so cach tru nang xa hoi. ((hieu ve) OR (hieu van)) phan thuc vat thanh hai cua tre.
• Adding a wildcard symbol may retrieve word variants: so cach tru nang xa hoi. ((hieu ve) or (hieu van)) phan thuc vat thanh hai cua tre*.