Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
cham thu » cam thu, nham thu, pham thu
dang xay » dang van, van xay
sach tay » xach tay, sach hay, sach nay
vai cua » dai cua, hai cua, lai cua
thu van » thuc van, thuy van, tu van
te sach » toc sach
ve cham » va cham, ve chat, vu cham
lang xa » lang ha, lang van
hieu ve » hieu va, hieu van
vi cua » di cua

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 tay ((lang xa) OR (dang xay)) hoi. hieu ve cham thu van thanh ((vi cua) or (vai cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach tay ((lang xa) OR (dang xay)) hoi. hieu ve cham thu van thanh ((vi cua) OR (vai cua)) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach tay ((lang xa) OR (dang xay)) hoi. hieu ve cham thu van thanh ((vi cua) or (vai cua)) triet".
• Adding a wildcard symbol may retrieve word variants: te sach tay ((lang xa) OR (dang xay)) hoi. hieu ve cham thu van thanh ((vi cua) or (vai cua)) triet*.