Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham bua chu snippets" » "pham ba chu snippets", "pham cua chu snippets", "pham luan chu snippets", "pham qua chu 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 bua chu 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 bua chu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham bua chu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham bua chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.