Perhaps you should try some spelling variations:
thuc day » thuc dan, thuc vat
toc sac » toc sach, toc san, hoc sach
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
day dan » day danh, dao dan, cay dan
dan vai » dan va, dan tai, dan vat
vai cuu » vai cua
cuu tre » cua tre, cau tren, cau treo
sac ky » cac ky, sai ky
va nam » van nam, ha nam
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 lang xa hoi. hieu ((va nam) or (va nay)) thuc day dan vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sac ky lang xa hoi. hieu ((va nam) OR (va nay)) thuc day dan vai cuu tre.
• Adding a wildcard symbol may retrieve word variants: toc sac ky lang xa hoi. hieu ((va nam) or (va nay)) thuc day dan vai cuu tre*.