Perhaps you should try some spelling variations:
thanh va » thanh van, hanh va, thanh ha
duc manh » suc manh, duc anh, duc minh
su sach » so sach, vu sach
duc ban » duc tan, duc van, dua ban
ve cham » va cham, ve chat, vu cham
sach ty » sach y, sach tu, sach thu
xang xa » lang xa, mang xa, ang xa
ve cam » ve cac, va cam, ve cai
va cua » va chua, via cua, ca cua
cua te » cua tu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty xang xa hoi. hieu ((ve cam) OR (ve cham)) ((duc ban) OR (duc manh)) thanh va cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty xang xa hoi. hieu ((ve cam) OR (ve cham)) ((duc ban) or (duc manh)) thanh va cua te~".
• Adding a wildcard symbol may retrieve word variants: su sach ty xang xa hoi. hieu ((ve cam) OR (ve cham)) ((duc ban) or (duc manh)) thanh va cua te*.