Perhaps you should try some spelling variations:
thanh thi » thanh tai, nhanh thi, thanh tri
van thanh » ban thanh, van tuan
chat duc » chat xuc, chat doc, chet duoc
hieu ve » hieu va, hieu van
thi cua » thai cua, thi cuc, tri cua
duc van » duc va, duc tan, duc manh
ve chat » va chat, van chat
cua tre » cua te, cuu tre, cua triet
nang xa » lang xa, nang ma, mang xa
sac ky » cac ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sac ky) OR (sai ky)) ((nang xa) or (nang x)) hoi. hieu ve chat duc van thanh thi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sac ky) OR (sai ky)) ((nang xa) OR (nang x)) hoi. hieu ve chat duc van thanh thi cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sac ky) OR (sai ky)) ((nang xa) or (nang x)) hoi. hieu ve chat duc van thanh thi cua tre*".