Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nang van » dang van, tang van, nong van
lang van » dang van, tang van, hoang van
cham xuc » cam xuc, chat xuc, cham soc
hanh vai » hanh vi, hanh va, hanh tai
tu sach » thu sach, su sach, te sach
hieu va » lieu va, hieu qua
va cham » va chat, va tham
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, dua tren
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach y ((nang van) or (lang van)) hoa. hieu va cham xuc va hanh vai ((cua tre) OR (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y ((nang van) OR (lang van)) hoa. hieu va cham xuc va hanh vai ((cua tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y ((nang van) or (lang van)) hoa. hieu va cham xuc va hanh vai ((cua tre) OR (cua triet))".
• Adding a wildcard symbol may retrieve word variants: tu sach y ((nang van) or (lang van)) hoa. hieu va cham xuc va hanh vai ((cua tre) OR (cua triet))*.