Perhaps you should try some spelling variations:
can thuc » dan thuc, van thuc, cay thuc
dua tren » dung tren
hieu van » hieu va, thien van, lieu va
tu sach » thu sach, su sach, te sach
hang di » hang doi, hang vi, hang dien
va hang » van hang, va nang, va lang
cuu tre » cua tre, cau tren, cau treo
sach ky » sac ky, sach y, sach ty
cac thu » cach thuc, cac thoi
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky lang xa hoi. hieu van ((cac thu) or (can thuc)) va hang di ((dua tren) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky lang xa hoi. hieu van ((cac thu) OR (can thuc)) va hang di ((dua tren) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: tu sach ky lang xa hoi. hieu van ((cac thu) or (can thuc)) va hang di ((dua tren) or (cuu tre))*.