Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
thien van » thi van
toc sach » hoc sach, doc sach, thuoc sach
va thanh » gia thanh, ban thanh, va tinh
nam thuc » nam thuoc, am thuc, nam thu
hieu van » hieu va, lieu va, hieu ve
dang xay » dang van, van xay
sach ky » sac ky, sach y, sach ty
thuc va » thuc vat, thuc dan, thuc day
lang xa » lang ha, lang van
tai cua » thai cua, tai cuc, tri cua
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: toc sach ky ((lang xa) OR (dang xay)) hoi. ((hieu van) or (thien van)) nam thuc va thanh tai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ky ((lang xa) OR (dang xay)) hoi. ((hieu van) OR (thien van)) nam thuc va thanh tai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ky ((lang xa) OR (dang xay)) hoi. ((hieu van) or (thien van)) nam thuc va thanh tai cua te".
• Adding a wildcard symbol may retrieve word variants: toc sach ky ((lang xa) OR (dang xay)) hoi. ((hieu van) or (thien van)) nam thuc va thanh tai cua te*.