Perhaps you should try some spelling variations:
thuc dan » thuc hanh, hoc dan, thuc vat
tuc cac » tu cac, tich cac
dan tai » van tai, dan thi, han tai
dan vai » dan va, dan vat, den vai
cuu tre » cua tre, cau tren, cau treo
ky lang » ky nang, ky dang, ky tang
thuc va » thuc vat, thuc day
hieu va » lieu va, hieu qua
lang xa » lang ha, dang xay, lang van
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: tuc cac ky lang xa hoi. hieu va nay ((thuc va) or (thuc dan)) ((dan vai) or (dan tai)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tuc cac ky lang xa hoi. hieu va nay ((thuc va) OR (thuc dan)) ((dan vai) OR (dan tai)) cuu tre.
• Adding a wildcard symbol may retrieve word variants: tuc cac ky lang xa hoi. hieu va nay ((thuc va) or (thuc dan)) ((dan vai) or (dan tai)) cuu tre*.