Perhaps you should try some spelling variations:
sang dai » sang tai, lang dai, sang mai
hieu sau » hieu suat, tieu su, hieu va
hieu su » tieu su, hieu so, hieu suat
va hanh » van hanh, va thanh, va danh
dai hai » dai han, dai hoi, dai tai
vi cua » vai cua, di cua
xuc va » duc va, tuc va, luc va
sac ky » cac ky
cua te » cua tu

You may be able to get more results by adjusting your search query.

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