Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"con chi hoai snippets" » "con thi hoai snippets", "con chi hoa snippets", "con chi hoat snippets", "con chim hoai snippets", "cong chi hoai snippets", "can chi hoai 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: (((("con chi hoai snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("con chi hoai snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( con chi hoai snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("con chi hoai snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.