Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets"
"hang van ruan slippers" » "hoang van ruan slippers", "hang va ruan slippers", "dang van ruan slippers", "hang van quan slippers", "hang van tuan slippers", "hang van huan slippers", "hang van ruan slippery", "hang van ruan grippers"
"locating bug code snippets" » "locating bug core snippets", "locating bung code snippets", "locating bugs code 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: (((("using java code snippets") or ("hang van ruan slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("hang van ruan slippers"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("hang van ruan slippers"))) or ("locating bug code snippets"))*.