Perhaps you should try some spelling variations:
nuoc sach » nguoi sach, hoc sach, cuoc cach
cua triet » cua viet, su triet
cac phuc » cau phuc, khac phuc, cach thuc
ban hanh » ban hang
van hanh » van thanh, van anh, van ban
va triet » va thiet, va trien, ve triet
hieu ve » hieu va, hieu van
sach ky » sac ky, sach y, sach ty
ve cac » va cac, vien cac
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: nuoc sach ky nang x hoi. hieu ve cac phuc ((van hanh) or (ban hanh)) di ((cua triet) OR (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nuoc sach ky nang x hoi. hieu ve cac phuc ((van hanh) OR (ban hanh)) di ((cua triet) OR (va triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "nuoc sach ky nang x hoi. hieu ve cac phuc ((van hanh) or (ban hanh)) di ((cua triet) OR (va triet))".
• Adding a wildcard symbol may retrieve word variants: nuoc sach ky nang x hoi. hieu ve cac phuc ((van hanh) or (ban hanh)) di ((cua triet) OR (va triet))*.