Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
dang xay » dang van, van xay
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
cac xuc » cam xuc, chat xuc, cac cuoc
sach ty » sach y, sach tu, sach thu
te sach » toc sach
lang xa » lang ha, lang van
hieu va » lieu va, hieu qua
vi su » va su, ve su, ki su

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 ty ((lang xa) OR (dang xay)) hoi. hieu va ((cac xuc) OR (cac nuoc)) va danh vi su triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty ((lang xa) or (dang xay)) hoi. hieu va ((cac xuc) OR (cac nuoc)) va danh vi su triet~".
• Adding a wildcard symbol may retrieve word variants: te sach ty ((lang xa) or (dang xay)) hoi. hieu va ((cac xuc) OR (cac nuoc)) va danh vi su triet*.