Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hieu van » hieu va, thien van, lieu va
van chat » cao chat
chat xuc » chat huu, cam xuc, chao xu
ban hanh » ban hang
van hanh » van thanh, van anh, van ban
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
va hanh » va thanh, va danh, dao hanh

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ky nang xa hoi. hieu van chat xuc ((((va hanh) OR (ban hanh))) or (van hanh)) dai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang xa hoi. hieu van chat xuc ((((va hanh) OR (ban hanh))) OR (van hanh)) dai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang xa hoi. hieu van chat xuc ((((va hanh) OR (ban hanh))) or (van hanh)) dai cua triet".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang xa hoi. hieu van chat xuc ((((va hanh) OR (ban hanh))) or (van hanh)) dai cua triet*.