Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan quang d snippets" » "dang quang d snippets", "doan quang d snippets", "van quang d snippets", "dan quang de snippets", "dan quang do snippets", "dan quang _ 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: (((("dan quang d snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan quang d snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan quang d snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan quang d snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.