Perhaps you should try some spelling variations:
te sach » toc sach
cua tre » cua te, cua triet, dua tren
hanh di » hanh vi, hanh de, hang di
va hanh » van hanh, va thanh, va danh
sach tu » sach thu, cach tu, sach ty
cac tuc » cac toc, cac tu, cac tac
nang xa » nang x, lang xa, nang ma
cuu tre » cau tren, cau treo
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: te sach tu ((nang xa) or (nang cao)) hoi. lieu va cac tuc va hanh di ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach tu ((nang xa) OR (nang cao)) hoi. lieu va cac tuc va hanh di ((cua tre) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: te sach tu ((nang xa) or (nang cao)) hoi. lieu va cac tuc va hanh di ((cua tre) or (cuu tre))*.