Perhaps you should try some spelling variations:
ban hanh » ban hang
va thanh » gia thanh, ban thanh, va tinh
te sach » toc sach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
cac dac » cac dan, cac dai, cac bac
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
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: te sach y nang xa hoi. hieu ve ((cac du) or (cac dac)) ((ban hanh) or (va thanh)) di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang xa hoi. hieu ve ((cac du) OR (cac dac)) ((ban hanh) OR (va thanh)) di cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach y nang xa hoi. hieu ve ((cac du) or (cac dac)) ((ban hanh) or (va thanh)) di cua tre*.