Perhaps you should try some spelling variations:
chat huu » pham huu
hieu van » hieu va, thien van, lieu va
hanh vai » hanh vi, hanh va, hanh tai
tu sach » thu sach, su sach, te sach
hieu ve » hieu va
va hanh » van hanh, va thanh, va danh
vai cuu » vai cua
cuu tre » cua tre, cau tren, cau treo
y nang » ky nang, ly nang, v nang

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 x ho. ((hieu ve) OR (hieu van)) ((cam xuc) or (chat huu)) va hanh vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang x ho. ((hieu ve) OR (hieu van)) ((cam xuc) OR (chat huu)) va hanh vai cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang x ho. ((hieu ve) OR (hieu van)) ((cam xuc) or (chat huu)) va hanh vai cuu tre".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang x ho. ((hieu ve) OR (hieu van)) ((cam xuc) or (chat huu)) va hanh vai cuu tre*.