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