Perhaps you should try some spelling variations:
ban trinh » ban tinh, dan trinh, van trinh
cau treo » cau theo, cau tren, cau triet
trinh ve » trinh he, trinh va, trinh vi
cham cuu » cap cuu, chat cua
cuu tre » cua tre, cau tren
cuu ban » cuu van, cua ban, cuu san
tu cach » tu cac
hieu va » lieu va, hieu qua
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
te sach » toc sach
va cham » va chat, va tham

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) or (te sach)) ky lang xa hoi. hieu va cham cuu ban trinh ve ((cuu tre) or (cau treo))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (te sach)) ky lang xa hoi. hieu va cham cuu ban trinh ve ((cuu tre) OR (cau treo)).
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (te sach)) ky lang xa hoi. hieu va cham cuu ban trinh ve ((cuu tre) or (cau treo))*.