Perhaps you should try some spelling variations:
dung tren » dung trong, dung trung
thanh lai » thanh hai, thanh lap, thanh loi
va thanh » gia thanh, ban thanh, va tinh
te sach » toc sach
sach ty » sach y, sach tu, sach thu
tang ma » tang van
hieu vi » hieu voi, hieu va, hieu ve
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: te sach ty ((tang ma) OR (mang may)) 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: te sach ty ((tang ma) OR (mang may)) 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: "te sach ty ((tang ma) OR (mang may)) hoi. hieu vi pham duc va thanh lai ((dung tren) or (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: te sach ty ((tang ma) OR (mang may)) hoi. hieu vi pham duc va thanh lai ((dung tren) or (cuu tre))*.