Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
tu sach » thu sach, su sach, te sach
van cau » van dau, van hau, van chat
cau xuc » cam xuc, cau luc, cau truc
va hanh » van hanh, va thanh, va danh
doi cua » hoi cua, dong cua
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, ma hoa, me hoi
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: tu sach y nang ((ma hoi) OR (xa hoi)). hieu van cau xuc va hanh ((dai cua) or (doi cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang ((ma hoi) OR (xa hoi)). hieu van cau xuc va hanh ((dai cua) OR (doi cua)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang ((ma hoi) OR (xa hoi)). hieu van cau xuc va hanh ((dai cua) or (doi cua)) te".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang ((ma hoi) OR (xa hoi)). hieu van cau xuc va hanh ((dai cua) or (doi cua)) te*.