Perhaps you should try some spelling variations:
"data using java snippets" » "data using data snippets", "data using java slippers"
"trung dai trac snippets" » "truong dai trac snippets", "truong dao trac snippets", "trung tam trac snippets", "trung dai truc snippets", "trung hai trac snippets", "trung hoi trac snippets", "trung dai trac 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: (((("trung dai trac snippets") or ("data using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trung dai trac snippets") OR ("data using java snippets"))) OR ("locating bug code snippets")).
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