Perhaps you should try some spelling variations:
ban hanh » ban hang
va thanh » gia thanh, ban thanh, va tinh
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
ky danh » ky anh, ky dang
danh xa » danh ca, dinh xa, canh xa
qua cua » quan cua, quang cua, qua quan
cua xuc » cua duc, cua tuc, cua cuc
va hanh » van hanh, va danh, dao hanh
cuu tre » cua tre, cau tren, cau treo
vi cuu » vi luu, vinh cuu

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ky danh xa hoi. hieu qua cua xuc ((((va hanh) or (ban hanh))) or (va thanh)) vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky danh xa hoi. hieu qua cua xuc ((((va hanh) OR (ban hanh))) OR (va thanh)) vi cuu tre.
• Adding a wildcard symbol may retrieve word variants: su sach ky danh xa hoi. hieu qua cua xuc ((((va hanh) or (ban hanh))) or (va thanh)) vi cuu tre*.