Perhaps you should try some spelling variations:
thanh thai » thanh hai, thanh tai, nhanh thai
ban thanh » ban hanh, ban hang
thai cua » than cua, tai cuc, tri cua
cam duc » cam xuc, cao duc, nam duoc
cach tu » cach thuc
hang xa » hoang xa, hang va, hang ca
sach ty » sach y, sach tu, sach thu
cua tre » cua te, cuu tre, cua triet

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((cach tu) or (sach ty)) hang xa hoi. hieu qua ((cam duc) or (pham duc)) ban thanh thai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((cach tu) OR (sach ty)) hang xa hoi. hieu qua ((cam duc) OR (pham duc)) ban thanh thai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu ((cach tu) or (sach ty)) hang xa hoi. hieu qua ((cam duc) or (pham duc)) ban thanh thai cua tre*.