Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
ve triet » va trien, su triet
te sach » toc sach
hieu va » lieu va, hieu qua
va cham » va chat, va tham
xuc van » luc van, vuc van, xuc ban
duc van » duc va, duc tan, duc manh
v nang » va nang, vu nang, van nang
x hoi » xa hoi, o hoi, x ho
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: ((thu sach) or (te sach)) v nang x hoi. hieu va cham ((xuc van) or (duc van)) hanh vi ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (te sach)) v nang x hoi. hieu va cham ((xuc van) OR (duc van)) hanh vi ve triet.
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (te sach)) v nang x hoi. hieu va cham ((xuc van) or (duc van)) hanh vi ve triet*.