Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khac mo di snippets" » "khac do di snippets", "khac co di snippets", "khai mo di snippets", "khac mo dai snippets", "khac so di snippets", "khac mo de 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 mo di 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 mo di snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khac mo di snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khac mo di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.