Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
van hanh » van thanh, ban hanh, van anh
va thanh » gia thanh, ban thanh, va tinh
ve triet » va trien, su triet
qua cau » quan cau, qua cac, qua ca
cau xuc » cam xuc, cau luc, cau truc
va hanh » va danh, ban hanh, dao hanh
y nang » ky nang, ly nang, v 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 y nang x hoi. hieu qua cau xuc ((((va hanh) OR (van hanh))) or (va thanh)) vi ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y nang x hoi. hieu qua cau xuc ((((va hanh) OR (van hanh))) OR (va thanh)) vi ve triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach y nang x hoi. hieu qua cau xuc ((((va hanh) OR (van hanh))) or (va thanh)) vi ve triet*".