Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
hieu ve » hieu va, hieu van
va kinh » va tinh, qua kinh
lai cua » dai cua, lai chau, thai cua
hai cua » thai cua, dai cua, hoi cua
y nang » ky nang, ly nang, may nang
v nang » va nang, vu nang, van nang
ve cam » ve cham, ve cac, va cam
xuc va » duc va, tuc va, luc 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: tu sach ((y nang) or (v nang)) x hoi. hieu ve cam xuc va kinh ((lai cua) OR (hai cua)) viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((y nang) OR (v nang)) x hoi. hieu ve cam xuc va kinh ((lai cua) OR (hai cua)) viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((y nang) or (v nang)) x hoi. hieu ve cam xuc va kinh ((lai cua) OR (hai cua)) viet".
• Adding a wildcard symbol may retrieve word variants: tu sach ((y nang) or (v nang)) x hoi. hieu ve cam xuc va kinh ((lai cua) OR (hai cua)) viet*.