Perhaps you should try some spelling variations:
dang xay » dang van, van xay
lang van » dang van, tang van, hoang van
va doanh » van doanh, vay doanh, hoa doanh
te sach » toc sach
dan cua » dan ca, ban cua, dai cua
sach ky » sac ky, sach y, sach ty
cau toc » cac toc, cao toc, cau hoc
va danh » va dinh, va dan, va hanh
va cau » van cau, va cac, va dau
cua te » cua tu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky ((dang xay) OR (lang van)) hoi. lieu va cau toc ((va doanh) OR (va danh)) dan cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky ((dang xay) or (lang van)) hoi. lieu va cau toc ((va doanh) OR (va danh)) dan cua te~".
• Adding a wildcard symbol may retrieve word variants: te sach ky ((dang xay) or (lang van)) hoi. lieu va cau toc ((va doanh) OR (va danh)) dan cua te*.