Perhaps you should try some spelling variations:
ban tinh » ban thanh, quan tinh, ban hanh
tu sach » thu sach, su sach, te sach
ve cham » va cham, ve chat, vu cham
long ha » dong ha, cong ha, dong hoa
tinh vi » trinh vi, tinh voi, tinh va
cuc ban » cua ban, cac ban, cuu ban
vi cua » vai cua, di cua
cua tu » cua tuc, cua su, cua cu
ve cam » ve cac, va cam, ve cai

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 y ((lang ha) or (long ha)) hoi. hieu ((ve cam) or (ve cham)) cuc ban tinh vi cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y ((lang ha) OR (long ha)) hoi. hieu ((ve cam) OR (ve cham)) cuc ban tinh vi cua tu.
• Adding a wildcard symbol may retrieve word variants: tu sach y ((lang ha) or (long ha)) hoi. hieu ((ve cam) or (ve cham)) cuc ban tinh vi cua tu*.