Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
cua tre » cua te, cuu tre, cua triet
duc ban » duc tan, duc van, dua ban
sach ty » sach y, sach tu, sach thu
xuc ban » cuc ban, quoc ban, xuat ban
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
ty nang » ky nang, ty xang, ty hang
anh de » hanh de, anh d, anh ve
cua tu » cua tuc, cua su, cua cu
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 ty nang x hoi. hieu ve cham ((xuc ban) OR (duc ban)) anh de ((cua tre) or (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang x hoi. hieu ve cham ((xuc ban) OR (duc ban)) anh de ((cua tre) OR (cua tu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty nang x hoi. hieu ve cham ((xuc ban) OR (duc ban)) anh de ((cua tre) or (cua tu))".
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang x hoi. hieu ve cham ((xuc ban) OR (duc ban)) anh de ((cua tre) or (cua tu))*.