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 va » lieu va, hieu qua
cac tuc » cac toc, cac tu, cac tac
va danh » va dinh, va dan, va hanh
cho cua » co cua, chi cua, cho ca
cua tre » cua te, cuu tre, cua triet
tuc va » thuc va, truc va, tuc xa

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 ((le hoi) or (ma hoa)). hieu va cac tuc va danh cho cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ly nang ((le hoi) OR (ma hoa)). hieu va cac tuc va danh cho cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ly nang ((le hoi) or (ma hoa)). hieu va cac tuc va danh cho cua tre*.