Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"doi tan do snippets" » "doi ban do snippets", "doi tac do snippets", "dai tan do snippets", "doi tang do snippets", "doi toan do snippets", "doi tuan do 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: "((((\"doi tan do snippets\") OR (\"python using java snippets\"))) OR (\"locating bugs code snippets\"))~".
• Removing quotes may allow a broader search: (((( doi tan do snippets ) OR ( python using java snippets ))) OR ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("doi tan do snippets") OR ("python using java snippets"))) OR ("locating bugs code snippets"))*.