Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh hai » thanh phan, thanh hoa, thanh san
trang xa » trang va, trang ha, trong xa
hieu van » hieu va, thien van, lieu va
cua tre » cua te, cuu tre, cua triet
hai cua » thai cua, dai cua, hoi cua
cam duc » cao duc, pham duc, nam duoc
sai ky » sac ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((cac ky) or (sai ky)) trang xa hoi. hieu van ((cam duc) or (cam xuc)) ban thanh hai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((cac ky) OR (sai ky)) trang xa hoi. hieu van ((cam duc) OR (cam xuc)) ban thanh hai cua tre.
• Adding a wildcard symbol may retrieve word variants: su ((cac ky) or (sai ky)) trang xa hoi. hieu van ((cam duc) or (cam xuc)) ban thanh hai cua tre*.