Perhaps you should try some spelling variations:
thai tuc » thai thuc, thai thuy, thai hoc
thanh vi » thanh va, thanh ve, nhanh vi
nang xa » lang xa, nang ma, mang xa
va thai » van thai, va tai, va tham
cua tre » cua te, cuu tre, cua triet
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
tuc va » thuc va, truc va, tuc xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky ((nang xa) or (nang x)) hoi. lieu va thai tuc va ((thanh vi) or (hanh vi)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky ((nang xa) OR (nang x)) hoi. lieu va thai tuc va ((thanh vi) OR (hanh vi)) cua tre.
• Adding a wildcard symbol may retrieve word variants: su sac ky ((nang xa) or (nang x)) hoi. lieu va thai tuc va ((thanh vi) or (hanh vi)) cua tre*.