Perhaps you should try some spelling variations:
ban hanh » ban hang
chat xuc » chat huu, cam xuc, chao xu
su triet » su viet, su tien, ve triet
tu sach » thu sach, su sach, te sach
hieu ve » hieu va, hieu van
ve chat » va chat, van chat
y nang » ky nang, ly nang, v nang
vi su » va su, ve su, ki 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 y nang x ho. hieu ve chat xuc ((van ban) or (ban hanh)) vi su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang x ho. hieu ve chat xuc ((van ban) OR (ban hanh)) vi su triet.
• Adding a wildcard symbol may retrieve word variants: tu sach y nang x ho. hieu ve chat xuc ((van ban) or (ban hanh)) vi su triet*.