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