Perhaps you should try some spelling variations:
hanh sua » hinh su, hanh va, hanh tu
va triet » va thiet, va trien, ve triet
su sach » so sach, vu sach
hieu ve » hieu va, hieu van
cam duc » cam xuc, cao duc, pham duc
va hanh » van hanh, va thanh, va danh
y nang » ky nang, ly nang, may nang
v nang » va nang, vu nang, van nang
ve cam » ve cham, ve cac, va cam
sua va » suat va, vua va, xua va
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ((y nang) OR (v nang)) x hoi. hieu ve cam duc va hanh sua va triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((y nang) OR (v nang)) x hoi. hieu ve cam duc va hanh sua va triet".
• Adding a wildcard symbol may retrieve word variants: su sach ((y nang) OR (v nang)) x hoi. hieu ve cam duc va hanh sua va triet*.