Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
sach kem » hanh kem
sang lap » sang tao, sang ma, sang tai
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
van cam » van nam, van lam, van cau
lap hai » lap tai, lap lai, lap hoat
sac ky » cac ky, sai ky
xuc va » duc va, tuc va, luc va
cua tu » cua tuc, cua cu, cua te
cua su » qua su

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