Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"than doc he snippets" » "than doc code snippets", "than hoc he snippets", "than do he snippets", "than doc hieu snippets", "thanh doc he snippets", "phan doc he snippets", "tran doc he 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: (((("than doc he snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("than doc he snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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