Perhaps you should try some spelling variations:
vu sach » vu bach, su sach, vu khach
sach ty » sach y, sach tu, sach thu
xang xa » lang xa, mang xa, ang xa
hieu ve » hieu va, hieu van
cam tuc » cam xuc, cam tu, nam thuc
xa dung » xay dung, va dung, a dung
xa dong » ha dong, van dong, lao dong
doi cua » dai cua, hoi cua
cua tre » cua te, cuu tre, cua triet

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ty xang xa hoi. ((hieu ve) or (lieu va)) cam tuc ((xa dung) or (xa dong)) doi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ty xang xa hoi. ((hieu ve) OR (lieu va)) cam tuc ((xa dung) OR (xa dong)) doi cua tre.
• Adding a wildcard symbol may retrieve word variants: vu sach ty xang xa hoi. ((hieu ve) or (lieu va)) cam tuc ((xa dung) or (xa dong)) doi cua tre*.