Perhaps you should try some spelling variations:
danh sai » dung sai, danh bat, danh dau
danh lai » gianh lai, dinh lam, hanh lam
tu sach » thu sach, su sach, te sach
sach tu » sach thu, cach tu, sach ty
cua tre » cuu tre, cua triet, dua tren
tu nang » tru nang, tu nong, tu nano
cao suc » cao su, cao duc
suc va » duc va, tuc va, luc va
va cao » va cac, va co, va dao
cua te » cua tu
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 tu nang x hoi. lieu va cao suc va ((danh lai) OR (danh sai)) ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach tu nang x hoi. lieu va cao suc va ((danh lai) OR (danh sai)) ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach tu nang x hoi. lieu va cao suc va ((danh lai) OR (danh sai)) ((cua tre) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: tu sach tu nang x hoi. lieu va cao suc va ((danh lai) OR (danh sai)) ((cua tre) or (cua te))*.