Perhaps you should try some spelling variations:
danh sai » dung sai, danh bat, danh dau
phu san » phi san, thuy san
nang xa » nang x, lang xa, nang ma
hieu va » hieu qua
cuu tre » cua tre, cau tren, cau treo
san ky » sang ky, van ky, dan ky
xuc va » duc va, tuc va, xac va
luc va » duc va, tuc va, loc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: phu san ky nang xa hoi. ((lieu va) or (hieu va)) cam ((xuc va) OR (luc va)) danh sai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: phu san ky nang xa hoi. ((lieu va) OR (hieu va)) cam ((xuc va) OR (luc va)) danh sai cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "phu san ky nang xa hoi. ((lieu va) or (hieu va)) cam ((xuc va) OR (luc va)) danh sai cuu tre".
• Adding a wildcard symbol may retrieve word variants: phu san ky nang xa hoi. ((lieu va) or (hieu va)) cam ((xuc va) OR (luc va)) danh sai cuu tre*.