Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tuc hoan doi snippets" » "duc hoan doi snippets", "tuc hon doi snippets", "duc hoang doi snippets", "tuc hoa doi snippets", "tuc hoat doi snippets", "tuc hoang dai 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: (((("tuc hoan 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: (((("tuc hoan doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("tuc hoan doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.