Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"da doc cao snippets" » "da hoc cao snippets", "da do cao snippets", "da doc dao snippets", "da duoc cao snippets", "dat doc cao snippets", "day doc cao snippets"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"da doc cao snippets\") OR (\"python using java snippets\"))) OR (\"locating bugs code snippets\"))~".
• Removing quotes may allow a broader search: (((( da doc cao snippets ) OR ( python using java snippets ))) OR ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("da doc cao snippets") OR ("python using java snippets"))) OR ("locating bugs code snippets"))*.