Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
hanh tai » hang tai, han tai, hinh tai
dang xay » dang van, van xay
nam thuc » nam thuoc, am thuc, nam thu
toc sac » toc sach, toc san, hoc sach
lang xa » lang ha, lang van
hieu va » lieu va, hieu qua
thuc va » thuc vat, thuc dan, thuc day
va nam » van nam, ha nam, va nay
sac ky » cac ky, sai ky
cua tu » cua tuc, cua su, cua cu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: toc sac ky ((lang xa) OR (dang xay)) hoi. hieu va nam thuc va ((hanh tai) OR (thanh tai)) cua tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sac ky ((lang xa) OR (dang xay)) hoi. hieu va nam thuc va ((hanh tai) or (thanh tai)) cua tu~".
• Adding a wildcard symbol may retrieve word variants: toc sac ky ((lang xa) OR (dang xay)) hoi. hieu va nam thuc va ((hanh tai) or (thanh tai)) cua tu*.