Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
cao xuc » cam xuc, cao duc, cao suc
sach ky » sac ky, sach y, sach ty
cua duc » cua tuc, cua nuoc, cua quoc
hieu va » lieu va, hieu qua
cao hoa » cao hoat, cao khoa, cau hoa
va cao » va cac, va co, va dao
xuc va » duc va, tuc va, luc va
dao vi » dao voi, dao va, dao li
dao ve » bao ve, dap ve, dau ve
cua su » qua su

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 ky nang cao hoa. hieu va cao xuc va ((dao vi) OR (dao ve)) ((cua su) or (cua duc))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang cao hoa. hieu va cao xuc va ((dao vi) OR (dao ve)) ((cua su) OR (cua duc))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang cao hoa. hieu va cao xuc va ((dao vi) OR (dao ve)) ((cua su) or (cua duc))*".