Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
hieu van » hieu va, thien van, lieu va
cua tre » cua te, cuu tre, cua triet
vai cua » dai cua, hai cua, lai cua
van cam » van nam, van lam, van cau
lang ha » long ha
lang xa » dang xay, lang van
sac ky » cac ky, sai ky
luc va » duc va, loc va
tuc va » thuc va, truc va, tuc xa
tu sac » tu sach, tu cac, tu san

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 ((lang xa) OR (lang ha)) hoi. hieu van cam ((luc va) or (tuc va)) hanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky ((lang xa) OR (lang ha)) hoi. hieu van cam ((luc va) OR (tuc va)) hanh vai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky ((lang xa) OR (lang ha)) hoi. hieu van cam ((luc va) or (tuc va)) hanh vai cua tre*".