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