Perhaps you should try some spelling variations:
sach tham » sach nha
van hanh » van thanh, ban hanh, van anh
hieu van » hieu va, thien van, lieu va
hanh di » hanh vi, hanh de, hang di
xuc van » duc van, luc van, vuc van
van cam » van nam, van lam, van cau
sang ma » tang ma, nang ma, sang tao
cach tu » cach thuc
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cuu tre, cua triet
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((cach tu) or (sach tham)) ((nang xa) or (sang ma)) hoi. hieu van cam xuc van hanh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((cach tu) OR (sach tham)) ((nang xa) OR (sang ma)) hoi. hieu van cam xuc van hanh di cua tre.
• Adding a wildcard symbol may retrieve word variants: tu ((cach tu) or (sach tham)) ((nang xa) or (sang ma)) hoi. hieu van cam xuc van hanh di cua tre*.