Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh vai » thanh hai, thanh van, thanh tai
hieu van » hieu va, thien van, lieu va
cuu tre » cau tren, cau treo
cua tre » cua te, cua triet, dua tren
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
ma hoi » mai hoi, xa hoi, me hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky nang ((ma hoi) or (ma hoa)). hieu van nam cua ban thanh vai ((cuu tre) or (cua tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky nang ((ma hoi) OR (ma hoa)). hieu van nam cua ban thanh vai ((cuu tre) OR (cua tre)).
• Adding a wildcard symbol may retrieve word variants: te sac ky nang ((ma hoi) or (ma hoa)). hieu van nam cua ban thanh vai ((cuu tre) or (cua tre))*.