Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc anh ho snippets" » "hoc nganh ho snippets", "hoc nhanh ho snippets", "hoc sinh ho snippets", "hoc anh tho snippets", "hoc anh hoc snippets", "hoc manh 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: (((("hoc anh 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: (((("hoc anh ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc anh ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc anh ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.