Perhaps you should try some spelling variations:
thien van » thi van
van hanh » van thanh, ban hanh, van ban
nam thuc » nam thuoc, am thuc, nam thu
dang xay » dang van, van xay
van anh » van thanh, tuan anh, van minh
sach ty » sach y, sach tu, sach thu
te sach » toc sach
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cuu tre, cua triet
di cua » dai cua, doi cua, de cua

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 ty ((nang xa) or (dang xay)) hoi. thien van nam thuc ((van hanh) or (van anh)) di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty ((nang xa) OR (dang xay)) hoi. thien van nam thuc ((van hanh) OR (van anh)) di cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach ty ((nang xa) or (dang xay)) hoi. thien van nam thuc ((van hanh) or (van anh)) di cua tre*.