Perhaps you should try some spelling variations:
hanh thai » nhanh thai, hinh thai, hanh tai
thai cua » than cua, tai cuc, tri cua
ban hanh » ban hang
hieu van » hieu va, thien van, lieu va
cua tre » cua te, cuu tre, cua triet
dang xa » dang xay, lang xa, dang ha
hieu ve » hieu va
duc ban » duc tan, duc van, dua ban
cam duc » cam xuc, cao duc, pham duc
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 ((sai ky) OR (sac ky)) dang xa hoi. ((hieu ve) or (hieu van)) cam duc ban hanh thai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sai ky) OR (sac ky)) dang xa hoi. ((hieu ve) OR (hieu van)) cam duc ban hanh thai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sai ky) OR (sac ky)) dang xa hoi. ((hieu ve) or (hieu van)) cam duc ban hanh thai cua tre".
• Adding a wildcard symbol may retrieve word variants: su ((sai ky) OR (sac ky)) dang xa hoi. ((hieu ve) or (hieu van)) cam duc ban hanh thai cua tre*.