Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bua pham doi snippets" » "tuan pham doi snippets", "quan pham doi snippets", "su pham doi snippets", "bua pham do snippets", "bua pham moi snippets", "bua pham 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: (((("python using java snippets") or ("bua pham doi snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("bua pham doi snippets"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("bua pham doi snippets"))) or ("locating bug code snippets"))*.