Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
hanh ca » hanh cac, hanh cat, hanh cua
va hanh » van hanh, va thanh, va danh
cac tuc » cac toc, cac tu, cac tac
cuu tre » cua tre, cau tren, cau treo
hieu va » lieu va
ty nang » ky nang, ty hang, ly nang
ma hoi » mai hoi, xa hoi, ma hoa
tuc va » thuc va, truc va, tuc xa
ca cuu » cap cuu, cua cuu, ca cua

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 ((ty nang) OR (ty xang)) ma hoi. ((hieu va) or (hieu qua)) cac tuc va hanh ca cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((ty nang) OR (ty xang)) ma hoi. ((hieu va) OR (hieu qua)) cac tuc va hanh ca cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((ty nang) OR (ty xang)) ma hoi. ((hieu va) or (hieu qua)) cac tuc va hanh ca cuu tre*".