Perhaps you should try some spelling variations:
sach ky » sac ky, sach ty, sach kem
tinh vi » trinh vi, tinh voi, tinh va
va tinh » may tinh
ve cuoc » va cuoc, ve duoc, ve nuoc
cua tre » cua te, cuu tre, cua triet
nang xa » nang x, lang xa, nang ma
ve coc » ve cac, ve co
luc va » duc va, tuc va, loc va
vi cua » vai cua, di cua

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 ky) OR (sach y)) nang xa hoi. hieu ((ve coc) OR (ve cuoc)) luc va tinh vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ky) OR (sach y)) nang xa hoi. hieu ((ve coc) or (ve cuoc)) luc va tinh vi cua tre~".
• Adding a wildcard symbol may retrieve word variants: su ((sach ky) OR (sach y)) nang xa hoi. hieu ((ve coc) or (ve cuoc)) luc va tinh vi cua tre*.