Perhaps you should try some spelling variations:
sach chu » sach che, sach thu, sach thue
chu bang » thu bang, chuc nang, chu quang
tu sach » thu sach, su sach, te sach
hanh va » hang va, hanh vi
han tai » hang tai, nhan tai, van tai
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va, hieu van
ve cam » ve cham, ve cac, va cam
bang x » nang x, bang _, bang 2
xuc va » tuc va, luc va, xac va
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: tu sach chu bang x hoi. hieu ve cam ((xuc va) OR (duc va)) ((han tai) or (hanh va)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach chu bang x hoi. hieu ve cam ((xuc va) OR (duc va)) ((han tai) OR (hanh va)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach chu bang x hoi. hieu ve cam ((xuc va) OR (duc va)) ((han tai) or (hanh va)) cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sach chu bang x hoi. hieu ve cam ((xuc va) OR (duc va)) ((han tai) or (hanh va)) cua tre*.