Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thieu so doc snippets" » "thieu so do snippets", "thieu so dac snippets", "thieu so do8 snippets", "hieu so doc 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: (((("thieu so doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thieu so doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thieu so doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thieu so doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.