Perhaps you should try some spelling variations:
ban hanh » ban hang
tu sang » thu sang, tu san, tu lang
cuc ban » cua ban, cac ban, cuu ban
sang ky » sang kyo, dang ky, tang ky
lang ha » long ha
lang xa » dang xay, lang van
cuu tre » cua tre, cau tren, cau treo
ve cac » vien cac
vi cuu » vi luu, vinh cuu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu sang ky ((lang xa) OR (lang ha)) hoi. hieu ((ve cac) OR (va cac)) cuc ban hanh vi cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sang ky ((lang xa) or (lang ha)) hoi. hieu ((ve cac) OR (va cac)) cuc ban hanh vi cuu tre~".
• Adding a wildcard symbol may retrieve word variants: tu sang ky ((lang xa) or (lang ha)) hoi. hieu ((ve cac) OR (va cac)) cuc ban hanh vi cuu tre*.