Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phoi man den snippets" » "phoi mac den snippets", "phoi phan den snippets", "phoi rang den snippets", "phoi ban den snippets", "phoi dan den snippets", "phoi van den 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: (((("phoi man den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phoi man den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phoi man den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phoi man den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.