Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chen cho ho snippets" » "chan cho ho snippets", "chinh cho ho snippets", "chen chen ho snippets", "chen cho hoc snippets", "chen cho hoa snippets", "chen pho ho 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: (((("chen cho ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chen cho ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chen cho ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chen cho ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.