Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"sin hoc do snippets" » "sinh hoc do snippets", "tin hoc do snippets", "sin ho do snippets", "sin hoc doi snippets", "sin hoc co snippets", "sin hoc bo snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("sin hoc do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sin hoc do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sin hoc do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sin hoc do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.