Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khac moi doi snippets" » "khac mo doi snippets", "khac tuoi doi snippets", "hoc moi doi snippets", "khac voi doi snippets", "khac hoi doi snippets", "khac moi voi 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 moi doi 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 moi doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khac moi doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khac moi doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.