Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pho phan doc snippets" » "phoi phan doc snippets", "cho phan doc snippets", "phe phan doc snippets", "pho phan duoc snippets", "pho phan duc snippets", "pho than 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: (((("pho phan 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: (((("pho phan doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pho phan doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pho phan doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.