Perhaps you should try some spelling variations:
hieu van » thien van, lieu va, hieu ve
danh vai » danh sai, danh va, doanh van
vai cua » dai cua, hai cua, lai cua
va danh » va dinh, va dan, va hanh
hieu va » lieu va, hieu qua
su sach » so sach, vu sach
lap hai » lap tai, lap lai, lap hoat
ky tang » ky nang, ky dang, kho tang
ky sang » ky nang, ky dang, duy sang
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: su sach ((ky sang) or (ky tang)) lap hai. ((hieu van) OR (hieu va)) cam xuc va danh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ky sang) OR (ky tang)) lap hai. ((hieu van) OR (hieu va)) cam xuc va danh vai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((ky sang) or (ky tang)) lap hai. ((hieu van) OR (hieu va)) cam xuc va danh vai cua te".
• Adding a wildcard symbol may retrieve word variants: su sach ((ky sang) or (ky tang)) lap hai. ((hieu van) OR (hieu va)) cam xuc va danh vai cua te*.