Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pha dua moi snippets" » "phan dua moi snippets", "pha du moi snippets", "pha cua moi snippets", "pha dua voi snippets", "pha vua 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: (((("pha dua 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: (((("pha dua moi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pha dua moi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pha dua moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.