Perhaps you should try some spelling variations:
sach tri » sach tai, sach tren, sach truc
tri nang » thi nang, tra nang, tri bang
hieu van » hieu va, thien van, lieu va
van chat » cao chat
chat xuc » chat huu, cam xuc, chao xu
ban hanh » ban hang
su triet » su viet, su tien, ve triet
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
va hanh » van hanh, va thanh, va danh
di su » doi su, ki su, da su

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 tri nang xa hoi. hieu van chat xuc ((va hanh) or (ban hanh)) di su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach tri nang xa hoi. hieu van chat xuc ((va hanh) OR (ban hanh)) di su triet.
• Adding a wildcard symbol may retrieve word variants: su sach tri nang xa hoi. hieu van chat xuc ((va hanh) or (ban hanh)) di su triet*.