Perhaps you should try some spelling variations:
sang dai » sang tai, lang dai, sang mai
dai hoi » dai hoc, dai hai, dai moi
hieu su » hieu sau, tieu su, hieu so
va danh » va dinh, va dan, va hanh
danh vi » hanh vi, dinh vi, danh di
sac ky » cac ky
su cam » su nam, su cao, su can
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: tu ((sai ky) or (sac ky)) sang dai hoi. hieu su cam xuc va danh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sai ky) OR (sac ky)) sang dai hoi. hieu su cam xuc va danh vi cua te.
• Adding a wildcard symbol may retrieve word variants: tu ((sai ky) or (sac ky)) sang dai hoi. hieu su cam xuc va danh vi cua te*.