Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tieu can ve snippets" » "tiep can ve snippets", "dieu can ve snippets", "tiem can ve snippets", "tieu ban ve snippets", "tieu dan ve snippets", "tieu can va 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: (((("tieu can 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: (((("tieu can ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tieu can ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tieu can ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.