Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"che cong bo snippets" » "cho cong bo snippets", "chi cong bo snippets", "he cong bo snippets", "che cong bao snippets", "che cong so snippets", "che cong co 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: (((("che cong bo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("che cong bo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( che cong bo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("che cong bo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.