Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
tham xuc » tham nuoc, tham thuc, pham duc
van hanh » van thanh, ban hanh, van anh
ve triet » va trien, su triet
te sach » toc sach
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
va tham » van tham, va cham, va thanh
xuc van » duc van, luc van, xuc ban
v nang » va nang, vu nang, van nang
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 xa hoi. hieu va tham xuc 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 xa hoi. hieu va tham xuc van hanh vi ve triet.
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (te sach)) v nang xa hoi. hieu va tham xuc van hanh vi ve triet*.