Perhaps you should try some spelling variations:
thi van » thi lan, thi hanh, thi nang
va hanh » van hanh, va thanh, va danh
van dau » van dao, phan dau
tu sach » thu sach, su sach, te sach
nang xa » lang xa, nang ma, mang xa
dau xuc » dau xac, dau xua, dau nuoc
xuc va » duc va, tuc va, luc va
dai tu » dai thu, tai tu, cai tu
mai tu » tai tu

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 y ((nang xa) OR (nang x)) hoi. thi van dau xuc va hanh ((dai tu) OR (mai tu)) tieng~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y ((nang xa) or (nang x)) hoi. thi van dau xuc va hanh ((dai tu) OR (mai tu)) tieng~".
• Adding a wildcard symbol may retrieve word variants: tu sach y ((nang xa) or (nang x)) hoi. thi van dau xuc va hanh ((dai tu) OR (mai tu)) tieng*.