Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"du tich cong snippets" » "du lich cong snippets", "du tich dong snippets", "du tich vong snippets", "duy tich cong snippets", "dau tich 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: (((("du tich 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: (((("du tich cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( du tich cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("du tich cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.