Perhaps you should try some spelling variations:
dang dai » dang hai, dang bai, dang dan
ky dang » ky nang, ky danh
dai moi » doi moi, dai hoi
hieu su » hieu sau, tieu su, hieu so
su phat » su pham, tu phat, xu phat
danh du » danh dau, danh tu, dinh du
loc va » hoc va, luc va
du cua » duy cua, dau cua, dum cua
tu san » thu san, tu ban, tu can
xuc va » duc va, tuc va, luc va
san ky » sang ky, van ky, dan ky
cua tu » cua tuc, cua su, cua cu

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 dang dai moi. hieu su phat ((xuc va) or (loc va)) danh du cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ky dang dai moi. hieu su phat ((xuc va) OR (loc va)) danh du cua tu.
• Adding a wildcard symbol may retrieve word variants: tu san ky dang dai moi. hieu su phat ((xuc va) or (loc va)) danh du cua tu*.