Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phu ham so snippets" » "phu ha so snippets", "phuc cham so snippets", "phuc cam so snippets", "phu nam so snippets", "phu cham soc 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: (((("phu ham so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phu ham so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phu ham so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phu ham so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.