Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phu lam so snippets" » "phu la so snippets", "phap lam so snippets", "phai lam so snippets", "phu lam son snippets", "phu nam so snippets", "phu ham so 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 lam 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 lam so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phu lam so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phu lam so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.