Perhaps you should try some spelling variations:
ban hanh » ban hang
chieu ke » hieu ve, hieu kem, chinh ke
truc ban » thuc ban, truc dan, truc van
cuu tre » cau tren, cau treo
ky tang » ky nang, ky dang, kho tang
tang xa » trang xa, tang ma, lang xa
cua tre » cua te, cua triet, dua tren
hanh de » hanh ve, hanh kem
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky

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 tang xa hoi. ((chieu ke) OR (hieu ky)) cau truc ban hanh de ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky tang xa hoi. ((chieu ke) OR (hieu ky)) cau truc ban hanh de ((cua tre) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky tang xa hoi. ((chieu ke) OR (hieu ky)) cau truc ban hanh de ((cua tre) or (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: te sac ky tang xa hoi. ((chieu ke) OR (hieu ky)) cau truc ban hanh de ((cua tre) or (cuu tre))*.