Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"che ly dong snippets" » "che ly dung snippets", "che lao dong snippets", "che huy dong snippets", "che lay dong snippets", "che my dong 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 ly dong 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 ly dong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( che ly dong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("che ly dong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.