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