Perhaps you should try some spelling variations:
danh vai » danh sai, danh va, doanh van
tu sach » thu sach, te sach, tu cach
vai cua » dai cua, hai cua, lai cua
va danh » va dinh, va dan, va hanh
hieu va » lieu va, hieu qua
lap hai » lap tai, lap lai, lap hoat
ky dang » ky nang, ky danh
ky sang » ky nang, ky tang, duy sang
su sach » so sach, vu sach
va cam » va cham, va cac, va cao
xuc va » duc va, tuc va, luc va
cua te » cua tu

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) OR (su sach)) ((ky sang) or (ky dang)) lap hai. hieu va cam xuc va danh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ((ky sang) OR (ky dang)) lap hai. hieu va cam xuc va danh vai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (su sach)) ((ky sang) or (ky dang)) lap hai. hieu va cam xuc va danh vai cua te".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (su sach)) ((ky sang) or (ky dang)) lap hai. hieu va cam xuc va danh vai cua te*.