Perhaps you should try some spelling variations:
te sach » toc sach
vai cua » dai cua, hai cua, lai cua
va danh » va dinh, va hanh, dia danh
cam tuc » cam xuc, cam tu, nam thuc
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
ve cam » ve cham, ve cac, va cam
y sang » duy sang
va dan » ca dan, va dao, va dau
_ sang » _ san

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) OR (_ sang)) xa hoi. hieu ve cam tuc ((va danh) or (va dan)) vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((y sang) OR (_ sang)) xa hoi. hieu ve cam tuc ((va danh) OR (va dan)) vai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((y sang) OR (_ sang)) xa hoi. hieu ve cam tuc ((va danh) or (va dan)) vai cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach ((y sang) OR (_ sang)) xa hoi. hieu ve cam tuc ((va danh) or (va dan)) vai cua tre*.