Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
sach ly » sach y, sach lo, sach ty
ly nang » ky nang, ly hang, ly vang
hieu ve » hieu van
hieu va » lieu va, hieu qua
cac xuc » cam xuc, cac nuoc, chat xuc
va danh » va dinh, va dan, va hanh
danh vi » hanh vi, dinh vi, danh di
lua tre » luy tre, dua tren, luat tri
cua tre » cua te, cuu tre, cua triet
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 ly nang x ho. ((hieu ve) or (hieu va)) cac xuc va danh vi ((lua tre) OR (cua tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ly nang x ho. ((hieu ve) OR (hieu va)) cac xuc va danh vi ((lua tre) OR (cua tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ly nang x ho. ((hieu ve) or (hieu va)) cac xuc va danh vi ((lua tre) OR (cua tre))".
• Adding a wildcard symbol may retrieve word variants: tu sach ly nang x ho. ((hieu ve) or (hieu va)) cac xuc va danh vi ((lua tre) OR (cua tre))*.