Perhaps you should try some spelling variations:
dan thai » dang thai, dan thi, dan than
thai cuu » thai cua, tai cuc, thi cuc
te sach » toc sach
sach ky » sac ky, sach y, sach ty
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
van dau » phan dau
cuu tre » cua tre, cau tren, cau treo
va dan » ca dan, va dao, va dau

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 ky dang xa hoi. hieu ((van dau) OR (van dao)) nuoc va dan thai cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky dang xa hoi. hieu ((van dau) OR (van dao)) nuoc va dan thai cuu tre".
• Adding a wildcard symbol may retrieve word variants: te sach ky dang xa hoi. hieu ((van dau) OR (van dao)) nuoc va dan thai cuu tre*.