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