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