Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan dai deu snippets" » "phan dau deu snippets", "phan day deu snippets", "phan loai deu snippets", "phan dai de snippets", "phan doi deu snippets", "phan dai bieu 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: (((("phan dai deu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan dai deu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan dai deu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan dai deu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.