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