Perhaps you should try some spelling variations:
cau treo » cau theo, cau tren, cau triet
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu tu » chieu tu, hieu tuc, hien tu
tu cham » toc cham, thi cham
cuu tre » cua tre, cau tren
han dau » hang dau, phan dau, van dau
te sac » te sach, te cac, te san
loc va » hoc va, luc va
sac ky » cac ky, sai ky
soc va » hoc va, doc va, goc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky lang xa hoi. hieu tu cham ((soc va) OR (loc va)) han dau ((cuu tre) or (cau treo))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky lang xa hoi. hieu tu cham ((soc va) OR (loc va)) han dau ((cuu tre) OR (cau treo)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky lang xa hoi. hieu tu cham ((soc va) OR (loc va)) han dau ((cuu tre) or (cau treo))".
• Adding a wildcard symbol may retrieve word variants: te sac ky lang xa hoi. hieu tu cham ((soc va) OR (loc va)) han dau ((cuu tre) or (cau treo))*.