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