Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
vat thanh » dat thanh, gat thanh, tat thanh
lang van » dang van, hoang van, giang van
tang van » dang van, hoang van, trong van
sach thu » sach thue, sach thieu, sach tham
te sach » toc sach
hai cua » thai cua, dai cua, hoi cua
va cam » va cham, va cac, va cai
va cao » va cac, va co, va dao
cua te » cua tu

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 thu ((lang van) OR (tang van)) hoi. hieu ((va cam) or (va cao)) thuc vat thanh hai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach thu ((lang van) OR (tang van)) hoi. hieu ((va cam) OR (va cao)) thuc vat thanh hai cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach thu ((lang van) OR (tang van)) hoi. hieu ((va cam) or (va cao)) thuc vat thanh hai cua te*".