Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
hanh doi » thanh doi, hanh noi, hang doi
van hanh » van thanh, ban hanh, van anh
cua tre » cua te, cuu tre, cua triet
nang xa » nang x, lang xa, mang xa
doi cua » dai cua, hoi cua, dong cua
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va
xuc van » duc van, luc van, xuc ban
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 (nang ma)) hoi. ((hieu ve) or (hieu van)) cam xuc van hanh doi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky ((nang xa) OR (nang ma)) hoi. ((hieu ve) OR (hieu van)) cam xuc van hanh doi cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sac ky ((nang xa) or (nang ma)) hoi. ((hieu ve) or (hieu van)) cam xuc van hanh doi cua tre*.