Perhaps you should try some spelling variations:
thanh dat » thanh san, thanh hai, thanh van
va thanh » gia thanh, ban thanh, va tinh
tu sach » thu sach, su sach, te sach
hieu va » hieu qua
cua tre » cuu tre, cua triet, dua tren
y nang » ky nang, ly nang, v nang
xuc va » duc va, tuc va, luc va
cua te » cua tu

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