Perhaps you should try some spelling variations:
te sach » toc sach
sach ty » sach y, sach tu, sach thu
ty hang » ly hang, ty xang, thi hang
hieu va » lieu va, hieu qua
cac tuc » cac toc, cac tu, cac tac
hanh di » hanh vi, hanh de, danh di
hang di » hang doi, hang dien, hang dich
hang vi » hanh vi, khang voi, hang tai
cua tre » cua te, cuu tre, cua triet
va hoi » xa hoi, va hoc, va hoa
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 ty hang va hoi. hieu va cac tuc va ((hanh di) or (((hang di) or (hang vi)))) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty hang va hoi. hieu va cac tuc va ((hanh di) OR (((hang di) OR (hang vi)))) cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach ty hang va hoi. hieu va cac tuc va ((hanh di) or (((hang di) or (hang vi)))) cua tre*.