Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan hat ca snippets" » "phan phat ca snippets", "phan chat ca snippets", "phan ha ca snippets", "phan hat cua snippets", "phan tat ca snippets", "phan hat va 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 hat ca 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 hat ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan hat ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan hat ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.