Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phi cong mon snippets" » "thi cong mon snippets", "phan cong mon snippets", "pham cong mon snippets", "phi cong mong snippets", "phi dong mon snippets", "phi cong lon 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 cong mon 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 cong mon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phi cong mon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phi cong mon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.