Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets"
"dung tay trach slippers" » "dung ty trach slippers", "dung tap trac slippers", "dung sat trach slippers", "dung tai trach slippers", "dung may trach slippers", "vung tay trach slippers", "dung tay trach slippery", "dung tay trach grippers"
"locating bug code snippets" » "locating bug core snippets", "locating bung code snippets", "locating bugs code snippets"

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 ("dung tay trach slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("dung tay trach slippers"))) OR ("locating bug code snippets")).
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