Perhaps you should try some spelling variations:
te sach » toc sach
sach xu » sach xa, cach xu, mach xu
xu lang » cu lang, tu lang, xu dang
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
cam duc » cam xuc, cao duc, pham duc
dinh te » kinh te, dinh ve, dinh tu
cuu tre » cua tre, cau tren, cau treo
ve cam » ve cham, ve cac, va cam
cua te » cua tu

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 xu lang xa hoi. hieu ve cam duc va ((dinh te) or (dich te)) ((cua te) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach xu lang xa hoi. hieu ve cam duc va ((dinh te) OR (dich te)) ((cua te) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: te sach xu lang xa hoi. hieu ve cam duc va ((dinh te) or (dich te)) ((cua te) or (cuu tre))*.