Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"phi van tham snippets" » "phi van thanh snippets", "phi van tuan snippets", "phi van chat snippets", "phi san tham snippets", "thi van tham snippets", "phi va tham snippets"

Try widening your search to All Fields.

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