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