Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
vai cua » dai cua, hai cua, lai cua
xa hanh » xa thanh, xa khanh, va hanh
hieu va » lieu va, hieu qua
nang ma » tang ma, sang ma, mang may
cua tre » cua te, cuu tre, cua triet
sach v » sach va, sach 2, sach vay
va cam » va cham, va cac, va cao
xuc xa » tuc xa, buc 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 v) OR (sach y)) ((nang ma) or (nang cao)) hoi. hieu va cam xuc xa hanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach v) OR (sach y)) ((nang ma) OR (nang cao)) hoi. hieu va cam xuc xa hanh vai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach v) OR (sach y)) ((nang ma) or (nang cao)) hoi. hieu va cam xuc xa hanh vai cua tre".
• Adding a wildcard symbol may retrieve word variants: tu ((sach v) OR (sach y)) ((nang ma) or (nang cao)) hoi. hieu va cam xuc xa hanh vai cua tre*.