Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phi luong do snippets" » "phu luong do snippets", "phi thuong do snippets", "phan luong do snippets", "phi luong dao snippets", "phi cuong do snippets", "phi luong du 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 luong do 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 luong do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phi luong do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phi luong do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.