Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"va tieng can snippets" » "va tieng han snippets", "va tieng anh snippets", "va tiep can snippets", "va tinh can snippets", "tu tieng can snippets", "va thong 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: (((("va tieng 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: (((("va tieng can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( va tieng can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("va tieng can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.