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