Perhaps you should try some spelling variations:
dang xay » dang van, van xay
danh dan » danh dau, canh dan, dang dan
cac thoi » cac toi, cac hop, cac tro
hieu van » hieu va, thien van, lieu va
te sach » toc sach
cac toc » cac toi, cac nuoc
dan cua » dan ca, ban cua, dai cua
va danh » va dinh, va dan, va hanh
sach ky » sac ky, sach y, sach ty
lang xa » lang ha, lang van
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 ky ((lang xa) OR (dang xay)) hoi. hieu van ((cac toc) or (cac thoi)) va danh dan cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky ((lang xa) OR (dang xay)) hoi. hieu van ((cac toc) OR (cac thoi)) va danh dan cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky ((lang xa) OR (dang xay)) hoi. hieu van ((cac toc) or (cac thoi)) va danh dan cua te*".