Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phi hoi le snippets" » "phi loi le snippets", "khi hoi le snippets", "phi doi le snippets", "phi hoi ve snippets", "phi hai le snippets", "phi hoi e 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: (((("phi hoi le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phi hoi le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phi hoi le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phi hoi le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.