Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan lan ho snippets" » "phan lap ho snippets", "phan van ho snippets", "phan loai ho snippets", "phan lan cho snippets", "phan lan kho snippets", "phan can ho 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 lan ho 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 lan ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan lan ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan lan ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.