Perhaps you should try some spelling variations:
ban tinh » ban thanh, quan tinh, ban hanh
tu sach » thu sach, te sach, tu cach
su sach » so sach, vu sach
tinh vi » trinh vi, tinh voi, tinh va
dang xa » dang xay, lang xa, dang ha
cuc ban » cua ban, cac ban, cuu ban
vi cua » vai cua, di cua
cua te » cua tu
ve cac » va cac, vien cac
ve cam » ve cham, va cam, ve cai
y dang » ky dang, 2 dang, _ dang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (su sach)) y dang xa hoi. hieu ((ve cam) OR (ve cac)) cuc ban tinh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) y dang xa hoi. hieu ((ve cam) OR (ve cac)) cuc ban tinh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (su sach)) y dang xa hoi. hieu ((ve cam) OR (ve cac)) cuc ban tinh vi cua te".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) y dang xa hoi. hieu ((ve cam) OR (ve cac)) cuc ban tinh vi cua te*.