Perhaps you should try some spelling variations:
dang xay » dang van, van xay
te sach » toc sach
van cau » van dau, van hau, van chat
va dinh » van dinh, va kinh, va tinh
va danh » va dan, va hanh, dia danh
thi van » thi lan, thi hanh, thi nang
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cuu tre, cua triet

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 ((nang xa) or (dang xay)) hoi. thi van cau truc ((va danh) OR (va dinh)) dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y ((nang xa) OR (dang xay)) hoi. thi van cau truc ((va danh) OR (va dinh)) dai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y ((nang xa) or (dang xay)) hoi. thi van cau truc ((va danh) OR (va dinh)) dai cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach y ((nang xa) or (dang xay)) hoi. thi van cau truc ((va danh) OR (va dinh)) dai cua tre*.