Perhaps you should try some spelling variations:
dang xay » dang van, van xay
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
ve cham » va cham, vu cham, ve chim
tuc van » thuc van, truc van, tuc va
ve chat » va chat, van chat
cua duc » cua tuc, cua nuoc, cua quoc
xay hoi » xa hoi, tay hoi, cay phoi
y dang » ky dang, 2 dang, _ dang
va cam » va cham, va cac, va cao
vi cua » vai 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 y dang xay hoi. hieu ((va cam) or (((ve cham) OR (ve chat)))) tuc van hanh vi cua duc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y dang xay hoi. hieu ((va cam) OR (((ve cham) OR (ve chat)))) tuc van hanh vi cua duc.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y dang xay hoi. hieu ((va cam) or (((ve cham) OR (ve chat)))) tuc van hanh vi cua duc".
• Adding a wildcard symbol may retrieve word variants: te sach y dang xay hoi. hieu ((va cam) or (((ve cham) OR (ve chat)))) tuc van hanh vi cua duc*.