Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khoi can phi slippers" » "khoa can phi slippers", "khoi nang phi slippers", "hoc can phi slippers", "khoi can thi slippers", "khoi can chi slippers", "khoi chau phi slippers", "khoi can phi slippery", "khoi can phi grippers"
"locating bug code snippets" » "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: (((("khoi can phi slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khoi can phi slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("khoi can phi slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.