Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
trai ky » thai ky
nang xa » nang x, lang xa, nang ma
nam xuc » cam xuc, nam xua, nam thuc
va dinh » van dinh, va kinh, va tinh
dinh ve » dinh ket, dinh van
cua tre » cua te, cuu tre, cua triet
tai ky » thai ky, sai ky, dai ky
xuc va » duc va, tuc va, luc va
ve cua » le cua, de cua, te cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((tai ky) OR (trai ky)) nang xa hoi. hieu van nam xuc va dinh ve cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((tai ky) OR (trai ky)) nang xa hoi. hieu van nam xuc va dinh ve cua tre".
• Adding a wildcard symbol may retrieve word variants: te ((tai ky) OR (trai ky)) nang xa hoi. hieu van nam xuc va dinh ve cua tre*.