Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van luc co snippets" » "van luc code snippets", "van loc co snippets", "van duc co snippets", "van lu co snippets", "van luc cao snippets", "van luc cho snippets", "van tuc co snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("van luc co snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van luc co snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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