Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
tan thanh » tran thanh, tang thanh, toan thanh
te sach » toc sach
sach ty » sach y, sach tu, sach thu
ty hang » ly hang, ty xang, thi hang
hang do » hang doi, dang do, hang di
hieu ve » hieu va, hieu van
cac duc » cac du, cao duc, cac dac
cuu tre » cua tre, cau tren, cau treo
do hoi » do choi, do hoai, do thoi
ve cac » va cac, vien cac
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ty hang do hoi. hieu ve cac duc tan thanh tai ((cuu tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty hang do hoi. hieu ve cac duc tan thanh tai ((cuu tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: te sach ty hang do hoi. hieu ve cac duc tan thanh tai ((cuu tre) or (cua te))*.