Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
va thanh » gia thanh, ban thanh, va tinh
thanh va » thanh van, hanh va, thanh ha
hieu ve » hieu van
hieu va » lieu va, hieu qua
su viet » so viet
y nang » ky nang, ly nang, may nang
v nang » va nang, vu nang, van nang
xuc va » duc va, tuc va, luc va

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 ((y nang) or (v nang)) xa hoi. ((hieu ve) or (hieu va)) cam xuc va thanh va su viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((y nang) OR (v nang)) xa hoi. ((hieu ve) OR (hieu va)) cam xuc va thanh va su viet.
• Adding a wildcard symbol may retrieve word variants: thu sach ((y nang) or (v nang)) xa hoi. ((hieu ve) or (hieu va)) cam xuc va thanh va su viet*.