Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lang van can snippets" » "dang van can snippets", "tang van can snippets", "hoang van can snippets", "lang van canh snippets", "lang van ban snippets", "lang ban can 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: (((("lang van can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lang van can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lang van can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lang van can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.