Perhaps you should try some spelling variations:
sach tham » sach nha
tham nang » nham nang, tham lang, tham nhung
vien dai » hien dai
su sach » so sach, vu sach
cua tre » cua te, cuu tre, cua triet
ve cac » va cac, vien cac
xuc va » duc va, luc va, xac va
tuc va » thuc va, truc va, tuc xa
vi cua » vai cua, di cua
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach tham nang x hoi. hieu ((ve cac) or (vien dai)) ((xuc va) or (tuc va)) hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach tham nang x hoi. hieu ((ve cac) OR (vien dai)) ((xuc va) OR (tuc va)) hanh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: su sach tham nang x hoi. hieu ((ve cac) or (vien dai)) ((xuc va) or (tuc va)) hanh vi cua tre*.