Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc hoi du snippets" » "hoc khoi du snippets", "hoc hoa du snippets", "hoc noi du snippets", "hoc hoi tu snippets", "hoc hoi cu snippets", "hoc toi du 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 hoi du 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 hoi du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc hoi du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc hoi du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.