Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan vi cua snippets" » "phan va cua snippets", "phan ve cua snippets", "phan bi cua snippets", "phan vai cua snippets", "phan di cua 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 vi cua 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 vi cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan vi cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan vi cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.