Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
thuc va » thuc vat, thuc dan, thuc day
cua tre » cua te, cuu tre, cua triet
ve cam » ve cham, ve cac, va cam
xuc va » duc va, luc va, xac va
tuc va » truc va, tuc xa, duc va
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 ky lang xa hoi. hieu ve cam ((xuc va) or (((tuc va) or (thuc va)))) hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky lang xa hoi. hieu ve cam ((xuc va) OR (((tuc va) OR (thuc va)))) hanh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ky lang xa hoi. hieu ve cam ((xuc va) or (((tuc va) or (thuc va)))) hanh vi cua tre*.