Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khung hoc ho snippets" » "chung hoc ho snippets", "nhung hoc ho snippets", "thuong hoc ho snippets", "khung hoc pho snippets", "khung hoc hoa snippets", "khung hoc cho 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: (((("khung hoc 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: (((("khung hoc ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khung hoc ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khung hoc ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.