Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc thi cham snippets" » "hoc thi hai snippets", "hoc toc cham snippets", "hoc thi ha snippets", "hoc thai cham snippets", "hoc tai cham snippets", "hoc chi cham 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: (((("hoc thi cham snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc thi cham snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc thi cham snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc thi cham snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.