Perhaps you should try some spelling variations:
hoang van » hang va
hanh vai » hanh vi, hanh va, hanh tai
van hanh » van thanh, ban hanh, van anh
cua tre » cua te, cuu tre, cua triet
cam tuc » cam xuc, cam tu, nam thuc
nang xa » nang x, lang xa, nang ma
vai cua » dai cua, hai cua, lai cua
hieu ve » hieu van
hieu va » lieu va, hieu qua
tuc van » thuc van, truc van, tuc va
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky ((nang xa) or (hoang van)) hoi. ((hieu ve) or (hieu va)) cam tuc van hanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky ((nang xa) OR (hoang van)) hoi. ((hieu ve) OR (hieu va)) cam tuc van hanh vai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sac ky ((nang xa) or (hoang van)) hoi. ((hieu ve) or (hieu va)) cam tuc van hanh vai cua tre*.