Perhaps you should try some spelling variations:
dang xay » dang van, van xay
hieu van » hieu va, thien van, lieu va
hang loi » thang loi, hang doi, tang loi
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
xuc van » luc van, vuc van, xuc ban
duc van » duc va, duc tan, duc manh
loi cuu » loi cau, loi luu, loai cua
cuu tre » cua tre, cau tren, cau treo

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach y ((nang xa) or (dang xay)) hoi. hieu van nam ((xuc van) OR (duc van)) hang loi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y ((nang xa) OR (dang xay)) hoi. hieu van nam ((xuc van) OR (duc van)) hang loi cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y ((nang xa) or (dang xay)) hoi. hieu van nam ((xuc van) OR (duc van)) hang loi cuu tre".
• Adding a wildcard symbol may retrieve word variants: tu sach y ((nang xa) or (dang xay)) hoi. hieu van nam ((xuc van) OR (duc van)) hang loi cuu tre*.