Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khac hai le snippets" » "khac hau le snippets", "khac dai le snippets", "khai hai le snippets", "khac hai ly snippets", "khac tai le snippets", "khac hoi le 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: (((("khac hai le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khac hai le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khac hai le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khac hai le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.