Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
hanh dai » hanh tai, hanh dao, vanh dai
van hanh » van thanh, ban hanh, van anh
cham xuc » cam xuc, chat xuc, cham soc
cua tre » cua te, cuu tre, cua triet
xuc van » duc van, luc van, vuc van
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va
bai ky » ban ky, sai ky, dai ky
bac ky » cac ky, ban ky, sac ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((bai ky) or (bac ky)) nang xa hoi. ((hieu ve) OR (hieu van)) cham xuc van hanh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((bai ky) OR (bac ky)) nang xa hoi. ((hieu ve) OR (hieu van)) cham xuc van hanh dai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((bai ky) or (bac ky)) nang xa hoi. ((hieu ve) OR (hieu van)) cham xuc van hanh dai cua tre*".