Perhaps you should try some spelling variations:
thu sach » thuat sach, thuoc sach, thu hoach
va dinh » van dinh, va kinh, va tinh
hieu ve » hieu va, hieu van
tu sach » su sach, te sach, tu cach
xuc va » duc va, tuc va, luc va
ve cam » ve cham, ve cac, va cam
x hoi » xa hoi, o hoi, x ho
vu va » vu van, tu va
su va » su van, tu va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) OR (thu sach)) ky nang x hoi. hieu ve cam xuc va dinh ((vu va) or (su va)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) ky nang x hoi. hieu ve cam xuc va dinh ((vu va) OR (su va)) triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (thu sach)) ky nang x hoi. hieu ve cam xuc va dinh ((vu va) or (su va)) triet*".