Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"ghep van hau snippets" » "nghiep van hau snippets", "ghep tang hau snippets", "he van hau snippets", "ghep van ha snippets", "ghep van hai snippets", "ghep van dau snippets", "ghep van hau slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("ghep van hau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
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