Perhaps you should try some spelling variations:
nang dai » nang dau, nang tai, lang dai
hieu sau » hieu su, hieu suat, tieu su
sau phat » su phat, dau phat, sau phau
dai hoi » dai hoc, dai hai, dai moi
tu san » thu san, tu ban, tu can
san ky » sang ky, van ky, dan ky
xuc va » duc va, tuc va, xac va
luc va » duc va, tuc va, loc 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 san ky nang dai hoi. hieu sau phat ((xuc va) OR (luc va)) hanh vi cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu san ky nang dai hoi. hieu sau phat ((xuc va) OR (luc va)) hanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: tu san ky nang dai hoi. hieu sau phat ((xuc va) OR (luc va)) hanh vi cua te*.