Perhaps you should try some spelling variations:
lky nang » ly nang, ki nang, ke nang
tu sach » thu sach, su sach, te sach
hieu va » lieu va, hieu qua
va hanh » van hanh, va thanh, va danh
doi cua » dai cua, hoi cua
va cam » va cham, va cac, va cao
xuc va » duc va, tuc va, luc va
di cua » dai cua, de cua, do cua

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 ((ky nang) or (lky nang)) xa hoi. hieu va cam xuc va hanh ((di cua) OR (doi cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((ky nang) OR (lky nang)) xa hoi. hieu va cam xuc va hanh ((di cua) OR (doi cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((ky nang) or (lky nang)) xa hoi. hieu va cam xuc va hanh ((di cua) OR (doi cua)) tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ((ky nang) or (lky nang)) xa hoi. hieu va cam xuc va hanh ((di cua) OR (doi cua)) tre*.