Perhaps you should try some spelling variations:
sach nham » sach nha, sach tham, sach han
nham nang » phap nang, cam nang, kha nang
thu sach » tu sach, thuat sach, thuoc sach
nhan tai » hang tai, van tai, toan tai
hanh va » hang va, hanh vi
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va, hieu van
xuc va » duc va, tuc va, xac va
luc va » duc va, tuc va, loc va
ve cam » ve cham, ve cac, va cam
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: thu sach nham nang x hoi. hieu ve cam ((xuc va) OR (luc va)) ((nhan tai) or (hanh va)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach nham nang x hoi. hieu ve cam ((xuc va) OR (luc va)) ((nhan tai) OR (hanh va)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach nham nang x hoi. hieu ve cam ((xuc va) OR (luc va)) ((nhan tai) or (hanh va)) cua tre".
• Adding a wildcard symbol may retrieve word variants: thu sach nham nang x hoi. hieu ve cam ((xuc va) OR (luc va)) ((nhan tai) or (hanh va)) cua tre*.