Perhaps you should try some spelling variations:
hien hanh » dieu hanh
hien bach » vien bach, thien hach, dien sach
dang xay » dang van, van xay
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
cua tuc » cua duc, cua tu, cua thuoc
lang xa » lang ha, lang van
sac ky » cac ky, sai ky
vi cua » vai cua, di cua
co sac » co sach, co cac, cao sach

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: co sac ky ((lang xa) OR (dang xay)) hoi. hieu ((hien bach) OR (hien hanh)) nuoc va danh vi cua tuc~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "co sac ky ((lang xa) OR (dang xay)) hoi. hieu ((hien bach) or (hien hanh)) nuoc va danh vi cua tuc~".
• Adding a wildcard symbol may retrieve word variants: co sac ky ((lang xa) OR (dang xay)) hoi. hieu ((hien bach) or (hien hanh)) nuoc va danh vi cua tuc*.