Perhaps you should try some spelling variations:
cac truc » cau truc, cac tru, cac trung
te sach » toc sach
cua tre » cua te, cuu tre, cua triet
va danh » va dinh, va hanh, dia danh
hieu ve » hieu va, hieu van
sang xa » song xa, lang xa, sang ma
y sang » _ sang, duy sang
va dan » ca dan, va dao, va dau
ve cac » va cac, vien cac
cua tu » cua tuc, cua su, cua cu

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 sang xa hoi. hieu ve cac truc ((va danh) or (va dan)) vai ((cua tre) or (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y sang xa hoi. hieu ve cac truc ((va danh) OR (va dan)) vai ((cua tre) OR (cua tu)).
• Adding a wildcard symbol may retrieve word variants: te sach y sang xa hoi. hieu ve cac truc ((va danh) or (va dan)) vai ((cua tre) or (cua tu))*.