Perhaps you should try some spelling variations:
sach tri » sach tren, sach truc, sach bai
van hanh » van thanh, ban hanh, van anh
sach tai » sach bai, sach tham, sach dao
cham xuc » cam xuc, chat xuc, cham soc
hoi cua » hoi chuc
xuc van » duc van, luc van, vuc van
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
bang x » nang x, bang _, bang 2
vi cua » vai cua, di cua
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: su ((sach tri) OR (sach tai)) bang x hoi. hieu ve cham xuc van hanh ((vi cua) or (hoi cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach tri) OR (sach tai)) bang x hoi. hieu ve cham xuc van hanh ((vi cua) OR (hoi cua)) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach tri) OR (sach tai)) bang x hoi. hieu ve cham xuc van hanh ((vi cua) or (hoi cua)) triet".
• Adding a wildcard symbol may retrieve word variants: su ((sach tri) OR (sach tai)) bang x hoi. hieu ve cham xuc van hanh ((vi cua) or (hoi cua)) triet*.