Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan quan ho snippets" » "phan quang ho snippets", "phap quan ho snippets", "pham quang ho snippets", "phan quan he snippets", "phan quan ha snippets", "phan quan so 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 quan ho 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 quan ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan quan ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan quan ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.