Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham chat bo snippets" » "pham nhat bo snippets", "phap chat bo snippets", "phan chat bo snippets", "pham chat bao snippets", "pham chat beo snippets", "pham chat co 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: (((("pham chat bo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pham chat bo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham chat bo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham chat bo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.