Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
thanh vi » hanh vi, thanh va, thanh ve
va thanh » gia thanh, ban thanh, va tinh
dang xay » dang van, van xay
cuu tre » cua tre, cau tren, cau treo
nam xuc » cam xuc, nam xua, nam thuc
sach ty » sach y, sach tu, sach thu
vu sach » vu bach, su sach, vu khach
dang xa » lang xa, dang ha, dang va
hieu va » lieu va, hieu qua
va nam » van nam, ha nam, va nay
xuc va » duc va, tuc va, luc va

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

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