Perhaps you should try some spelling variations:
doanh van » doan van, doanh va, doanh ban
danh sai » dung sai, danh bat, danh dau
cua tre » cua te, cuu tre, cua triet
nang xa » nang x, lang xa, nang ma
tu sac » tu sach, tu cac, tu san
luc va » duc va, tuc va, loc va
sac ky » cac ky, sai ky
ve cam » ve cham, ve cac, ve cai
va cam » va cham, va cac, va cao

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

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