Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lam vong doi snippets" » "lam dong doi snippets", "lam nong doi snippets", "lam song doi snippets", "lam trong doi snippets", "lam huong doi snippets", "lam dung doi 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: (((("lam vong 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: (((("lam vong doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("lam vong doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.