Perhaps you should try some spelling variations:
van thang » van thanh, van khang, van hang
thang loi » thanh loi, thang long, thanh moi
cau treo » cau theo, cau tren, cau triet
dang xay » dang van, van xay
hieu van » hieu va, thien van, lieu va
xua van » xua va, qua van, cua van
cuu tre » cua tre, cau tren
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
nam xua » nam cua, nam mua, nam qua

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 xua van thang loi ((cuu tre) or (cau treo))~.
• 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 xua van thang loi ((cuu tre) OR (cau treo)).
• Adding a wildcard symbol may retrieve word variants: tu sach y ((nang xa) or (dang xay)) hoi. hieu van nam xua van thang loi ((cuu tre) or (cau treo))*.