Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
tinh vi » trinh vi, tinh voi, tinh va
cac ban » cac van, can ban, cac bai
va cham » va chat, va tham
ve cham » ve chat, vu cham, ve chim
danh xa » danh ca, dinh xa, canh xa
cua tre » cua te, cuu tre, cua triet
y danh » ky danh, ly danh, 1 danh
vi cua » vai cua, di cua

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 danh xa hoi. hieu ((ve cham) or (va cham)) ((cac ban) or (cac dan)) tinh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y danh xa hoi. hieu ((ve cham) OR (va cham)) ((cac ban) OR (cac dan)) tinh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach y danh xa hoi. hieu ((ve cham) or (va cham)) ((cac ban) or (cac dan)) tinh vi cua tre*.