Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phap va cho snippets" » "phap vat cho snippets", "pham va cho snippets", "pham van cho snippets", "phap van cho snippets", "phap va co snippets", "phap va che 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: (((("phap va cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phap va cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phap va cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phap va cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.