Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thuc du so snippets" » "truc du so snippets", "thuc su so snippets", "thuc tu so snippets", "thuc duc so snippets", "thuc duy 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: (((("thuc du 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: (((("thuc du so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thuc du so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thuc du so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.