Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan duoc dk snippets" » "phan duc dk snippets", "phan quoc dk snippets", "nhan duoc dk snippets", "phan duoc do snippets", "phan duoc dai snippets", "phan duoc dan 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: (((("phan duoc 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: (((("phan duoc dk snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan duoc dk snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan duoc dk snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.