Perhaps you should try some spelling variations:
te sach » toc sach
sach ky » sac ky, sach y, sach ty
nang xa » lang xa, nang ma, mang xa
van hau » van ha, van hai, van dau
va hanh » van hanh, va thanh, va danh
luu tre » luu tru, cuu tre, luy tre
xuc va » duc va, tuc va, luc va
vi luu » vi lua

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky ((nang xa) or (nang x)) hoi. hieu ((van hau) or (van dao)) xuc va hanh vi luu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky ((nang xa) OR (nang x)) hoi. hieu ((van hau) OR (van dao)) xuc va hanh vi luu tre.
• Adding a wildcard symbol may retrieve word variants: te sach ky ((nang xa) or (nang x)) hoi. hieu ((van hau) or (van dao)) xuc va hanh vi luu tre*.