Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thu sach » tu sach, thuat sach, thuoc sach
sach ky » sac ky, sach y, sach ty
va pham » van pham, va phat, va phap
duc van » duc va, duc tan, duc manh
hanh di » hanh vi, hang di, danh di
hanh de » hanh ve, hanh kem
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: thu sach ky nang x hoi. lieu va pham duc van ((hanh di) OR (hanh de)) cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ky nang x hoi. lieu va pham duc van ((hanh di) OR (hanh de)) cua triet".
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang x hoi. lieu va pham duc van ((hanh di) OR (hanh de)) cua triet*.