Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc bai goc snippets" » "hoc dai goc snippets", "hoc giai goc snippets", "hoc bai hoc snippets", "hoc bao goc snippets", "hoc bai doc 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 bai goc 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 bai goc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc bai goc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc bai goc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.