Perhaps you should try some spelling variations:
su sach » so sach, vu sach
sach tu » sach thu, cach tu, sach ty
va tinh » may tinh
cu tren » tu tren, dua tren
tu nang » tru nang, tu nong, tu nano
ve cam » ve cham, va cam, ve cai
ve cac » va cac, vien cac
x hoi » xa hoi, o hoi, x ho
va cu » va cau, va chu, va su

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 tu nang x hoi. hieu ((ve cam) OR (ve cac)) xuc ((le thanh) OR (va tinh)) va cu tren~.
• Adding a wildcard symbol may retrieve word variants: su sach tu nang x hoi. hieu ((ve cam) or (ve cac)) xuc ((le thanh) or (va tinh)) va cu tren*.