Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
dau tren » dau tien, dat tren, dau tieng
te sach » toc sach
dang xa » dang xay, lang xa, dang ha
nam xuc » cam xuc, nam xua, nam thuc
cuu tre » cua tre, cau tren, cau treo
y dang » ky dang, 2 dang, _ dang
va dan » va dao, va dau, va dap
ca dan » cac dan, ca dao

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 y dang xa hoi. hieu van nam xuc ((va dan) OR (ca dan)) vat ((cuu tre) or (dau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y dang xa hoi. hieu van nam xuc ((va dan) OR (ca dan)) vat ((cuu tre) OR (dau tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y dang xa hoi. hieu van nam xuc ((va dan) OR (ca dan)) vat ((cuu tre) or (dau tren))".
• Adding a wildcard symbol may retrieve word variants: te sach y dang xa hoi. hieu van nam xuc ((va dan) OR (ca dan)) vat ((cuu tre) or (dau tren))*.