Perhaps you should try some spelling variations:
thanh sang » thanh san, thanh hang, thanh hoang
toan thanh » tran thanh, hoan thanh, toan thang
thu sach » tu sach, thuat sach, thuoc sach
sang cua » mang cua, song cua, hang cua
cao suc » cao su
cao duc » dao duc, giao duc, tao duoc
hieu ve » hieu va, hieu van
cua te » cua tu

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 ((ky nang) or (ty xang)) xa hoi. hieu ve ((cao duc) OR (cao suc)) toan thanh sang cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((ky nang) OR (ty xang)) xa hoi. hieu ve ((cao duc) OR (cao suc)) toan thanh sang cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ((ky nang) or (ty xang)) xa hoi. hieu ve ((cao duc) OR (cao suc)) toan thanh sang cua te".
• Adding a wildcard symbol may retrieve word variants: thu sach ((ky nang) or (ty xang)) xa hoi. hieu ve ((cao duc) OR (cao suc)) toan thanh sang cua te*.