Perhaps you should try some spelling variations:
dung tren » dung trong, dung trung
thanh lai » thanh hai, thanh lap, thanh loi
toc sach » hoc sach, doc sach, thuoc sach
va thanh » gia thanh, ban thanh, va tinh
tang van » dang van, hoang van, trong van
sach ty » sach y, sach tu, sach thu
hieu vi » hieu voi, hieu va, hieu ve
tang ma » mang may
cuu tre » cua tre, cau tren, cau treo
pham » phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach ty ((tang ma) OR (tang van)) hoi. hieu vi pham duc va thanh lai ((dung tren) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ty ((tang ma) OR (tang van)) hoi. hieu vi pham duc va thanh lai ((dung tren) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ty ((tang ma) OR (tang van)) hoi. hieu vi pham duc va thanh lai ((dung tren) or (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: toc sach ty ((tang ma) OR (tang van)) hoi. hieu vi pham duc va thanh lai ((dung tren) or (cuu tre))*.