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