Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"thac van tin snippets" » "thai van tin snippets", "thao van tin snippets", "thuc van tin snippets", "thac van tien snippets", "thac van tan snippets", "thac van thinh snippets"

Try widening your search to All Fields.

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