Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phi vat moi snippets" » "phi va moi snippets", "phi van moi snippets", "phap vat moi snippets", "phi bat moi snippets", "phi vao moi 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 vat moi 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 vat moi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phi vat moi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phi vat moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.