Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phap du dot snippets" » "phap dau dot snippets", "phap tu dot snippets", "pha du dot snippets", "phap duy dot snippets", "phap da dot 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: (((("phap du dot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phap du dot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phap du dot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phap du dot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.