Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc quang do snippets" » "luc quan do snippets", "luu quang do snippets", "nuoc quang do snippets", "luc quang d snippets", "luc quang de snippets", "luc quang dong 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: (((("luc quang 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: (((("luc quang do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc quang do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc quang do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.