Perhaps you should try some spelling variations:
thien van » thi van
cua viet » ca viet, hoa viet, cua vat
van chat » cao chat
nang xa » lang xa, nang ma, mang xa
sach ky » sac ky, sach y, sach ty
danh tu » anh tu, doanh thu
tu sach » thu sach, su sach, te sach
soc va » hoc va, doc va, goc va
loc va » hoc va, luc va
tu cua » hu cua, vu cua

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: tu sach ky ((nang xa) OR (nang x)) hoi. thien van chat ((soc va) OR (loc va)) danh tu cua viet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky ((nang xa) OR (nang x)) hoi. thien van chat ((soc va) or (loc va)) danh tu cua viet~".
• Adding a wildcard symbol may retrieve word variants: tu sach ky ((nang xa) OR (nang x)) hoi. thien van chat ((soc va) or (loc va)) danh tu cua viet*.