Perhaps you should try some spelling variations:
nay thuc » nam thuc, cay thuc, day thuc
dang van » hoang van, hang va
thuc va » thuc vat, thuc dan, thuc day
dan tai » van tai, dan thi, han tai
dan vai » dan va, dan vat, den vai
toc sac » toc sach, toc san, hoc sach
van hoi » van hoa, van hoc, van hoe
hieu va » lieu va, hieu qua
ky dang » ky nang, ky danh
cua tre » cua te, cuu tre, cua triet
sac ky » cac ky, sai ky
va nay » va ngay, va cay

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sac ky dang van hoi. hieu va nay thuc va ((dan vai) or (dan tai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sac ky dang van hoi. hieu va nay thuc va ((dan vai) OR (dan tai)) cua tre.
• Adding a wildcard symbol may retrieve word variants: toc sac ky dang van hoi. hieu va nay thuc va ((dan vai) or (dan tai)) cua tre*.