Perhaps you should try some spelling variations:
xa thanh » va thanh, ha thanh, ta thanh
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
bai cua » ban cua, bai ca, hai cua
xa hanh » xa khanh, va hanh, da hanh
nam xuc » cam xuc, nam xua, nam thuc
hieu va » lieu va, hieu qua
tang ma » mang may, tang van
ky tang » ky nang, ky dang, kho tang
va nam » van nam, ha nam, va nay
ma hoi » mai hoi, xa hoi, ma hoa

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 ky tang ma hoi. hieu va nam xuc ((xa hanh) OR (xa thanh)) ((bai cua) or (dai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky tang ma hoi. hieu va nam xuc ((xa hanh) OR (xa thanh)) ((bai cua) OR (dai cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky tang ma hoi. hieu va nam xuc ((xa hanh) OR (xa thanh)) ((bai cua) or (dai cua)) tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ky tang ma hoi. hieu va nam xuc ((xa hanh) OR (xa thanh)) ((bai cua) or (dai cua)) tre*.