Perhaps you should try some spelling variations:
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
cuu ban » cuu van, cua ban, cuu san
cuc ban » cua ban, cac ban, duc ban
ve cham » va cham, ve chat, vu cham
cua tre » cua te, cuu tre, cua triet
ve cam » ve cac, va cam, ve cai
x hoi » xa hoi, o hoi, x ho
d cua » de cua, do cua, da cua

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 ky nang x hoi. hieu ((ve cam) OR (ve cham)) ((cuc ban) or (cuu ban)) anh d cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang x hoi. hieu ((ve cam) OR (ve cham)) ((cuc ban) OR (cuu ban)) anh d cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang x hoi. hieu ((ve cam) OR (ve cham)) ((cuc ban) or (cuu ban)) anh d cua tre".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang x hoi. hieu ((ve cam) OR (ve cham)) ((cuc ban) or (cuu ban)) anh d cua tre*.