Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"duc toan lua snippets" » "duc tan lua snippets", "duc ton lua snippets", "duc hoan lua snippets", "duc toan luan snippets", "duc toan luat snippets", "duc toan cua snippets"
"locating bug code slippers" » "locating bung code slippers", "locating bugs code slippers"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("using java code snippets") or ("duc toan lua snippets"))) or ("locating bug code slippers"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("duc toan lua snippets"))) OR ("locating bug code slippers")).
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