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