Perhaps you should try some spelling variations:
ban hang » ngan hang
sang tao » hang tai
cam duc » cam xuc, cao duc, pham duc
vai cuu » vai cua
hieu ve » hieu va, hieu van
sach ky » sach y, sach ty, sach kem
tao hoa » bao hoa, tao hoi, tao ho
cuu tre » cua tre, cau tren, cau treo
ve cam » ve cham, ve cac, va cam
sac ky » cac ky, sai ky

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 ky) or (sac ky)) sang tao hoa. hieu ve cam duc ((ban hanh) or (ban hang)) vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ky) OR (sac ky)) sang tao hoa. hieu ve cam duc ((ban hanh) OR (ban hang)) vai cuu tre.
• Adding a wildcard symbol may retrieve word variants: te ((sach ky) or (sac ky)) sang tao hoa. hieu ve cam duc ((ban hanh) or (ban hang)) vai cuu tre*.