Perhaps you should try some spelling variations:
sang dai » sang tai, lang dai, sang mai
van hanh » van thanh, ban hanh, van anh
dai hoi » dai hoc, dai hai, dai moi
hieu su » hieu sau, tieu su, hieu so
xuc van » duc van, luc van, vuc van
sac ky » cac ky
su cam » su nam, su cao, su can
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 van hanh 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 van hanh vi cua te.
• Adding a wildcard symbol may retrieve word variants: tu ((sai ky) or (sac ky)) sang dai hoi. hieu su cam xuc van hanh vi cua te*.