Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van thinh su slippers" » "van thanh su slippers", "van chinh su slippers", "van minh su slippers", "van hinh su slippers", "van trinh su slippers", "van thinh su slippery", "van thinh su grippers"
"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 ("van thinh su slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("van thinh su slippers"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("van thinh su slippers"))) or ("locating bug code snippets"))*.