Perhaps you should try some spelling variations:
dac trung » duc trung, cac truong, tai trung
dang xay » dang van, van xay
trung va » truong va, trang va, trung ha
xanh tai » hanh tai, anh tai, vanh tai
te sach » toc sach
thi van » thi lan, thi hanh, thi nang
van dac » van dao, van dau, van hac
va xanh » va danh, va hanh, va anh
tai cua » thai cua, tai cuc, tri cua
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 x) or (dang xay)) hoi. thi van dac trung va xanh tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y ((nang x) OR (dang xay)) hoi. thi van dac trung va xanh tai cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach y ((nang x) or (dang xay)) hoi. thi van dac trung va xanh tai cua tre*.