Perhaps you should try some spelling variations:
ve triet » va trien, su triet
ban hanh » ban hang
chat xuc » chat huu, cam xuc, chao xu
va tinh » may tinh
so sach » so sanh, bo sach, co sach
hieu ve » hieu va, hieu van
ty hang » ly hang, ty xang, thi hang
ty nang » ky nang, ty xang, ly nang
ve chat » va chat, van chat
vi ve » va ve, gi ve, ve ve

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ((ty nang) or (ty hang)) xa hoi. hieu ve chat xuc ((ban hanh) or (va tinh)) vi ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ((ty nang) OR (ty hang)) xa hoi. hieu ve chat xuc ((ban hanh) OR (va tinh)) vi ve triet.
• Adding a wildcard symbol may retrieve word variants: so sach ((ty nang) or (ty hang)) xa hoi. hieu ve chat xuc ((ban hanh) or (va tinh)) vi ve triet*.